Crispy Air Fryer Spicy Chicken Wings

Chicken wings are one of my favorite foods when I want something savory, spicy, and satisfying without spending hours in the kitchen. The challenge is getting that delicious combination of crispy skin, juicy meat, and bold seasoning without deep-frying the wings in a pot of oil. This Air Fryer Crispy Spicy Chicken Wings recipe delivers exactly that: golden, flavorful wings with a fiery kick, using a simple seasoning blend and the convenience of your air fryer.

What makes this recipe especially appealing is how little preparation it requires. You do not need a complicated marinade, a long list of ingredients, or a deep fryer. A little oil, baking powder, garlic powder, paprika, cayenne pepper, and a few pantry seasonings are enough to create wings that are crispy on the outside and tender inside. The air fryer circulates hot air around each wing, helping the skin render and brown while the meat cooks.

I also love how easy these wings are to customize. You can make them mildly spicy for a family dinner, turn up the cayenne for a game-day snack, or toss them with a little hot sauce after cooking for an extra punch of heat. They work just as well for a casual weekend meal as they do for parties, movie nights, and gatherings with friends.

For KetoFlavorHouse readers who enjoy low-carb meals, these wings are particularly convenient. Chicken wings contain virtually no carbohydrates on their own, and this recipe uses a dry seasoning blend rather than a sugary coating. You can serve them with celery sticks, cucumber slices, a creamy garlic dip, or a fresh salad for a satisfying low-carb meal.

The secret to crispiness is simple but important: dry the wings thoroughly, avoid overcrowding the basket, and cook them long enough for the skin to become golden and crisp. A small amount of baking powder helps improve the skin’s texture, while a final temperature check ensures the chicken is cooked safely.

Once you try this method, you may find yourself making these spicy air fryer wings whenever a craving strikes. They are straightforward, full of flavor, and easy to serve straight from the basket.

Why You’ll Love This Recipe

• 🍗 Crispy skin without deep-frying: Hot circulating air helps the wings brown without requiring a pot of oil.
• 🌶️ A satisfying spicy kick: Cayenne pepper, paprika, and black pepper create a savory heat that you can adjust.
• 🧄 Big flavor from pantry staples: Garlic powder, onion powder, and paprika provide plenty of flavor without a complicated marinade.
• ⏱️ Quick and convenient: The wings take approximately 25–30 minutes to cook, depending on their size and your air fryer.
• 🥑 Keto-friendly: The basic dry-rub recipe contains very few carbohydrates and no added sugar.
• 💪 Protein-rich: Chicken wings provide protein, making them a satisfying option for lunch, dinner, or snacks.
• 🎉 Perfect for sharing: Serve them on a platter for game day, parties, movie nights, or casual family gatherings.
• 🔥 Easy to customize: Adjust the cayenne, add chili flakes, or finish the wings with hot sauce.
• 🧽 Less mess: You avoid the splatter and large quantity of oil associated with deep-frying.
• 🍽️ Flexible serving options: Pair them with crunchy vegetables, salad, or your favorite low-carb dipping sauce.

My Personal Experience

When making spicy chicken wings, I think the biggest mistake is focusing only on the seasoning and forgetting about the skin. You can have the perfect blend of paprika, garlic, and cayenne, but if the wings are wet or crowded together in the basket, they may turn out soft rather than crispy.

That is why I start by patting the wings thoroughly dry. It sounds like a small detail, but removing surface moisture helps the skin brown more effectively. If the wings have been thawed from frozen, I pay extra attention to drying them because excess moisture can interfere with crisping.

I also like using a small amount of aluminum-free baking powder. It is not the same as baking soda, and the two should not be substituted directly. Baking powder helps the skin develop a better texture when used in a modest amount. It should be mixed thoroughly with the seasonings so there are no concentrated patches.

For flavor, I prefer a combination of paprika, garlic powder, onion powder, cayenne, black pepper, and salt. This creates a savory base with a noticeable heat that does not completely overpower the chicken. If I am serving people who prefer milder food, I reduce the cayenne and provide hot sauce on the side.

Another thing I have learned is not to overcrowd the air fryer. Wings need room for hot air to circulate around their surfaces. If they are piled on top of one another, the skin tends to steam where the pieces touch. Cooking in batches takes a little longer, but it produces more consistent results.

Finally, I always check the internal temperature instead of relying only on the color of the skin. Chicken wings should reach at least 165°F (74°C) for food safety. Wings are often even more tender when cooked to a higher temperature, around 175–185°F (79–85°C), provided the skin does not burn and the meat does not dry out.

The result is a batch of wings with a bold seasoning crust, crisp skin, and juicy meat. Serve them immediately for the best texture, because even perfectly cooked wings gradually lose crispness as they sit.

Required Equipment

Air Fryer

A basket-style air fryer is ideal because it allows you to spread the wings in a single layer. An oven-style air fryer also works, although you may need to rotate the trays for even browning.

Instant-Read Meat Thermometer

A thermometer helps confirm that the wings have reached a safe internal temperature. Check the thickest meaty section without touching the bone.

Large Mixing Bowl

Use a large bowl to toss the wings with the oil and seasoning mixture. There should be enough room to coat each piece evenly.

Kitchen Tongs

Tongs make it easy to turn the wings halfway through cooking and remove them from the hot basket without piercing the skin.

Paper Towels

Paper towels are useful for removing excess moisture from the raw wings before seasoning. This step helps promote crisp skin.

Measuring Spoons

Accurate measurements help keep the seasoning balanced, especially when working with salt and cayenne pepper.

Small Bowl

Use a separate bowl to mix the dry seasonings and baking powder before adding them to the chicken.

Oil Sprayer or Pastry Brush

A refillable oil sprayer or food-safe brush helps distribute a light coating of oil. Avoid using aerosol sprays that may damage certain air fryer coatings.

Serving Platter

A wide platter gives the wings room to breathe after cooking and makes it easy to serve them with dipping sauces and crunchy vegetables.

Ingredients & Substitutions

This recipe makes four servings using approximately 2 pounds (900 g) of chicken wings. The wings should be separated into flats and drumettes, with the wing tips removed if they are still attached.

Chicken Wings — 2 pounds (900 g)

Chicken wings provide the protein and the delicious skin that becomes crispy in the air fryer. A mixture of flats and drumettes works well.

Substitution: You can use whole wings, but they may need slightly different cooking times because of their size. Boneless chicken pieces can also be seasoned with this blend, although they will cook faster and will not have the same crispy skin.

Olive Oil — 1 tablespoon (15 ml)

A small amount of olive oil helps the seasoning adhere to the wings and encourages browning.

Substitution: Avocado oil is an excellent alternative. Any suitable neutral cooking oil can also work.

Aluminum-Free Baking Powder — 1 teaspoon

Baking powder helps improve the texture of the chicken skin by encouraging surface drying and browning. Use baking powder, not baking soda.

Substitution: You can omit it if you prefer, but the wings may be less crisp. If you have a sodium-sensitive diet, remember that baking powder can contribute additional sodium.

Paprika — 1 teaspoon

Paprika adds warm color and a mild peppery flavor. Regular sweet paprika is a good everyday choice.

Substitution: Smoked paprika creates a smoky flavor, while hot paprika adds more heat.

Garlic Powder — 1 teaspoon

Garlic powder creates a savory, aromatic flavor that works beautifully with spicy chicken.

Substitution: Granulated garlic can be used in a similar amount. Avoid adding a large quantity of fresh minced garlic before air frying because it may burn.

Onion Powder — 1 teaspoon

Onion powder adds depth and a subtle sweetness to the dry rub.

Substitution: Onion granules can work, although their texture may be slightly coarser.

Cayenne Pepper — ¼–½ teaspoon

Cayenne provides the heat that makes these wings spicy. Use ¼ teaspoon for moderate heat or ½ teaspoon for a stronger kick.

Substitution: Use crushed red pepper flakes or a small amount of another ground chili. Adjust gradually because chili varieties differ in strength.

Fine Salt — ¾ teaspoon, or to taste

Salt enhances the chicken’s natural flavor and balances the spice blend.

Substitution: Fine sea salt works well. If your chicken wings are already salted or injected with a seasoned solution, reduce the amount.

Black Pepper — ½ teaspoon

Black pepper adds a little extra bite and complements the cayenne.

Substitution: Freshly cracked black pepper gives a more pronounced flavor.

Dried Oregano — ½ teaspoon, Optional

Oregano adds a subtle herbal note that balances the paprika and chili.

Substitution: Dried thyme or a small amount of Italian seasoning can be used instead.

Hot Sauce — 1–2 teaspoons, Optional

A little hot sauce added after cooking can intensify the heat without making the skin soggy, provided you use it sparingly.

Substitution: Serve hot sauce on the side if you want to keep the wings as crispy as possible.

Air-Fryer Notes

Preheat the air fryer. Preheat to 380°F (193°C) for 3–5 minutes, unless your appliance instructions recommend otherwise. Starting with a hot basket helps the wings cook more consistently.

Dry the wings thoroughly. Pat every piece with paper towels before adding oil or seasoning. Surface moisture is one of the main obstacles to crisp skin.

Use a light coating of oil. One tablespoon is generally sufficient for 2 pounds of wings. Too much oil is unnecessary and may leave the finished wings greasy.

Do not overcrowd the basket. Arrange the wings in one layer with a little room between pieces. Cook in batches if necessary.

Flip halfway through. Turning the wings helps expose different surfaces to the circulating air and encourages even browning.

Use a hotter finish if needed. If the wings are cooked through but the skin needs more crispness, increase the temperature to 400°F (204°C) for 2–4 minutes, watching closely.

Check internal temperature. Chicken wings must reach at least 165°F (74°C) in the thickest meaty portion. For a more tender texture, many people prefer wings cooked to 175–185°F (79–85°C).

Serve promptly. Crispy skin gradually softens as steam collects around the wings. Transfer them to a platter and serve as soon as possible.

How to Make Crispy Air Fryer Spicy Chicken Wings

Step 1: Prepare the Chicken Wings

If the wings are whole, separate them into flats and drumettes at the joints using a sharp knife. Remove the wing tips if they are still attached, or save them for homemade stock.

Pat the wings very dry with paper towels, paying attention to the skin and the folds around the joints.

If you have time, place the uncovered wings on a tray in the refrigerator for 30 minutes to a few hours before cooking. This optional step helps dry the skin further. Keep raw chicken refrigerated during this process.

Step 2: Preheat the Air Fryer

Set your air fryer to 380°F (193°C) and preheat it for 3–5 minutes, following your appliance’s instructions.

Preheating helps establish a consistent cooking environment. If your model does not require preheating, follow the manufacturer’s guidance.

Step 3: Mix the Seasoning

In a small bowl, combine the baking powder, paprika, garlic powder, onion powder, cayenne pepper, salt, black pepper, and optional oregano.

Stir thoroughly so the baking powder and spices are evenly distributed. This is important because concentrated patches of baking powder may leave an unpleasant taste.

Step 4: Coat the Wings

Place the dried chicken wings in a large mixing bowl. Add the olive oil and toss until the skin is lightly coated.

Sprinkle the seasoning mixture over the wings and toss again. Make sure every piece is coated, including the smaller areas around the joints.

For a stronger flavor, you can let the seasoned wings rest in the refrigerator for 15–30 minutes. Keep them chilled rather than leaving them on the counter.

Step 5: Arrange the Wings in the Basket

Place the wings in a single layer in the preheated air fryer basket. Leave a little space between each piece.

If all the wings do not fit comfortably, cook them in two batches. A crowded basket traps steam and makes crisp skin more difficult to achieve.

Step 6: Air Fry the First Side

Cook the wings at 380°F (193°C) for 12–15 minutes.

The exact time depends on the size of the wings and the power of your air fryer. Smaller wings may cook more quickly, while large drumettes may need longer.

Step 7: Flip the Wings

Using tongs, turn each wing over. Continue air frying at 380°F (193°C) for another 10–15 minutes.

Begin checking the wings toward the earlier end of this range. The total cooking time will commonly be around 22–30 minutes, but larger pieces may need additional time.

Step 8: Check Doneness and Crispiness

Check the thickest meaty section of a few wings with an instant-read thermometer, avoiding contact with the bone.

The minimum safe internal temperature is 165°F (74°C). For a more tender wing texture, you can continue cooking until the meat reaches approximately 175–185°F (79–85°C), provided the wings are not burning or drying out.

If the wings are cooked through but the skin is not as crisp as you want, increase the air fryer to 400°F (204°C) and cook for another 2–4 minutes. Watch carefully during this final stage.

Step 9: Add Optional Hot Sauce

If you enjoy extra heat, toss the cooked wings with 1–2 teaspoons of hot sauce immediately before serving.

For maximum crispness, use a light coating rather than soaking the wings in sauce. You can also serve the sauce separately for dipping.

Step 10: Serve Immediately

Transfer the wings to a clean serving platter. Serve with celery sticks, cucumber slices, or a low-carb dipping sauce.

Enjoy them while the skin is hot and crisp. If you are preparing several batches, keep the first batch warm in a low oven rather than piling hot wings into a deep covered bowl, where trapped steam can soften the skin.

Common Mistakes to Avoid

• Skipping the drying step: Wet wings are more likely to steam instead of crisp. Pat them thoroughly dry before seasoning.
• Using baking soda instead of baking powder: They are not interchangeable in this recipe. Baking soda can leave a strong, unpleasant taste.
• Adding too much baking powder: Excess can affect flavor and texture. Measure carefully and mix it evenly with the seasonings.
• Overcrowding the basket: Wings need airflow. Cook in batches rather than stacking them tightly.
• Using too much oil: A light coating is sufficient. Excess oil does not automatically make the skin crispier.
• Applying sugary sauce too early: Sugar can burn during high-temperature cooking. Add sweet sauces toward the end or after cooking.
• Judging doneness by color alone: Brown skin does not guarantee that the meat is safely cooked. Check the internal temperature.
• Cooking at high heat for too long: The skin may burn before the meat becomes tender. Use the recommended temperature and adjust gradually.
• Covering the wings immediately: Trapped steam softens the skin. Serve promptly or hold them in a single layer in a warm oven.
• Forgetting food safety: Keep raw chicken separate from ready-to-eat foods and wash hands, bowls, and utensils after handling it.

Pro Tips for Best Results

Dry the wings ahead of time. Refrigerating them uncovered on a tray for a short period helps remove surface moisture. Make sure the refrigerator stays at a safe temperature and that the raw chicken is positioned to prevent drips onto other foods.

Use a light, even seasoning layer. Tossing the wings in a large bowl distributes the spices more consistently than sprinkling everything over one side.

Keep the cayenne adjustable. Start with ¼ teaspoon if you are unsure about the heat. You can always add hot sauce when serving.

Choose similar-sized wings. Pieces of similar size are more likely to finish at the same time. Remove smaller wings early if they cook faster.

Avoid excess sauce. Thick sauces can soften the skin. If you want saucy wings, serve the sauce separately or toss the wings immediately before eating.

Check multiple pieces. Different wings may have different thicknesses, especially if the basket is full. Check the thickest pieces rather than assuming every wing is done at the same time.

Cook in batches when necessary. A second batch often cooks slightly faster because the air fryer is already hot. Start checking early.

Keep the nutrition realistic. Chicken wings are naturally low in carbohydrates, but calories and fat vary depending on whether you use flats, drumettes, or whole wings and whether you eat the skin. Sauces can also add significant calories and carbohydrates.

Air-Fryer Benefits of Chicken Wings

Chicken wings provide protein and several essential nutrients, while the skin contributes much of their fat and characteristic flavor. They are naturally very low in carbohydrates before seasoning or sauces are added.

The air fryer offers a convenient way to cook wings without deep-frying them in a large volume of oil. The hot circulating air helps render fat from the skin and encourages browning, while a small amount of oil helps the dry rub adhere.

However, air frying does not automatically make wings low in calories. Chicken wings still contain fat, and the nutritional value depends on the portion size, cooking method, and toppings. This recipe keeps added oil modest and relies on spices rather than a sugary glaze.

For KetoFlavorHouse readers following a low-carb eating pattern, the dry-rub version is particularly practical. Pair the wings with leafy greens, celery, cucumber, or a measured serving of a creamy low-carb dip for a satisfying meal.

Variations You Can Try

Extra-Spicy Wings

Increase the cayenne pepper to ¾ teaspoon or add a pinch of chili flakes. Start with a smaller amount if you are sensitive to heat.

Smoky Paprika Wings

Replace the regular paprika with smoked paprika. The smoky flavor pairs well with garlic and black pepper.

Lemon Pepper Wings

Use less cayenne and add lemon pepper seasoning. Check whether the seasoning already contains salt before adding the full amount of salt in the recipe.

Cajun-Style Wings

Replace some of the paprika and herbs with Cajun seasoning. Since many Cajun blends contain salt, taste the seasoning mix before adding extra.

Garlic Herb Wings

Reduce the cayenne and increase the garlic powder slightly. Add dried thyme or oregano for a more herb-forward flavor.

Buffalo-Style Wings

After cooking, toss the wings with a small amount of hot sauce and melted butter. For the crispiest result, keep the sauce light and serve extra on the side.

Honey-Chili Style

If you do not need a strict low-carb version, toss the cooked wings with a small amount of honey and chili sauce. Add this after cooking rather than applying a sugary glaze at the beginning, which can burn.

Boneless Chicken Bites

Use bite-sized boneless chicken pieces with the same seasoning blend, but omit the wing-specific cooking time. Smaller pieces cook faster, so check the internal temperature early and ensure the thickest pieces reach 165°F (74°C).

Oven-Baked Version

Preheat a conventional oven to 425°F (220°C). Arrange the seasoned wings on a wire rack over a baking tray and bake for approximately 40–50 minutes, turning halfway through. Check that the thickest pieces reach at least 165°F (74°C), and cook longer if needed for the desired texture.

Tips for This Recipe

If you are planning to serve the wings for a party, prepare the dry seasoning blend in advance and keep it in a sealed container. This saves time when you are ready to cook.

You can also separate whole wings into flats and drumettes earlier in the day. Store the raw pieces covered in the refrigerator until you are ready to dry and season them.

For a larger gathering, cook the wings in batches and avoid stacking the finished pieces. If you need to hold them briefly, place them in a single layer in a low oven so the skin stays crisp.

If you prefer a milder version for some guests, divide the wings before seasoning and use less cayenne in one batch. Keep the hotter sauce on the side so everyone can adjust their own portion.

Finally, serve dips separately. This preserves the crisp skin and makes it easier to offer both low-carb and traditional sauces.

Optional Additions

These additions can change the flavor without requiring a completely different recipe.

Addition	Suggested amount	Approximate carbohydrate impact
Extra cayenne pepper	A pinch	Negligible
Smoked paprika	¼ tsp	Usually less than 1 g
Fresh lemon juice	1 tsp	Less than 1 g
Unsweetened hot sauce	1 tsp	Usually 0–1 g
Melted butter	1 tsp	0 g
Plain Greek yogurt dip	2 tbsp	About 1–3 g
Sugar-free barbecue sauce	1 tbsp	Varies by brand
Honey	1 tsp	About 6 g

Carbohydrate values are approximate and depend on the specific brand and serving size.

For a simple garlic dip, combine plain Greek yogurt with garlic powder, lemon juice, salt, and black pepper. For a richer option, mix hot sauce with a small amount of melted butter and serve it on the side.

If you are following a strict keto plan, check sauce labels carefully. Honey, sweet chili sauce, and conventional barbecue sauce can add carbohydrates quickly.

Serving Ideas

These spicy wings are versatile enough to serve as an appetizer, snack, or main meal.

• Keto dinner: Pair the wings with a fresh green salad, cucumber, and celery sticks.
• Game-day platter: Arrange the wings on a large plate with several dipping sauces.
• Low-carb snack: Serve a smaller portion with crunchy vegetables and a creamy garlic dip.
• Family meal: Add roasted vegetables or potato wedges for people who want a more substantial side.
• Buffalo-style dinner: Serve with celery sticks and a blue cheese or ranch-style dip.
• Meal-prep lunch: Pair the wings with leafy greens and a portion of roasted vegetables.
• Movie night: Serve hot wings with cucumber slices and a chilled sugar-free drink.
• Casual gathering: Offer a mixture of mild and spicy wings so guests can choose their preferred heat level.

For a low-carb plate, keep sugary sauces to a minimum and choose dips with a carbohydrate profile that suits your goals.

Storage & Reheating

Refrigerator

Let the wings cool briefly, then transfer them to a clean, airtight container and refrigerate within two hours of cooking.

Cooked chicken wings generally keep for 3–4 days in a refrigerator maintained at 40°F (4°C) or below.

For the best texture, avoid sealing the wings while they are still steaming hot. Cool them promptly and refrigerate them safely rather than leaving them at room temperature for an extended period.

Freezer

For longer storage, place the cooled wings in a freezer-safe airtight container or bag. Separate portions so you can reheat only what you need.

For best quality, use within approximately 2–3 months. Frozen food remains safe longer when continuously stored at 0°F (-18°C), but the skin may lose some crispness.

Thaw the wings in the refrigerator rather than on the counter.

Reheating in the Air Fryer

1. Preheat the air fryer to 350°F (175°C) for about 3 minutes.
2. Arrange the wings in a single layer.
3. Reheat refrigerated wings for approximately 4–7 minutes, turning halfway through if needed.
4. If the skin needs more crispness, increase the temperature to 400°F (204°C) for another 1–2 minutes, watching closely.
5. Check that the leftovers reach 165°F (74°C) throughout before serving.

Reheating times vary with wing size, quantity, and starting temperature. Avoid piling the wings into a crowded basket, as this can make the skin soft.

Frequently Asked Questions

1. How long do chicken wings take in the air fryer?

At 380°F (193°C), chicken wings commonly take around 22–30 minutes, depending on their size and your appliance. Turn them halfway through and check the thickest pieces with a thermometer. Larger wings may need additional time.

2. What temperature should chicken wings reach?

Chicken wings should reach a minimum internal temperature of 165°F (74°C) in the thickest meaty section. Many people prefer the texture of wings cooked to around 175–185°F (79–85°C), which can make the meat more tender. Avoid touching the bone with the thermometer probe.

3. How do I make air fryer wings extra crispy?

Dry the wings thoroughly, use a small amount of baking powder, avoid overcrowding, and cook in a single layer. If the wings are cooked through but need more browning, finish at 400°F (204°C) for 2–4 minutes while watching carefully.

4. Can I make these wings without baking powder?

Yes. You can omit it, and the wings will still cook successfully. However, the skin may not become quite as crisp. If using baking powder, make sure it is not baking soda and distribute it evenly through the seasoning mixture.

5. Are air fryer spicy chicken wings keto-friendly?

The basic dry-rub recipe is very low in carbohydrates and can fit into many keto meal plans. Check any dipping sauces carefully, because honey, sweet chili sauce, and regular barbecue sauce may contain added sugar. Portion size still matters because wings contain fat and calories.

6. Can I use frozen chicken wings?

Yes, but fresh or fully thawed wings generally provide more consistent results. If cooking from frozen, follow your air fryer manufacturer’s guidance for frozen poultry, allow extra cooking time, separate the pieces as they thaw enough to handle safely, and verify that every wing reaches at least 165°F (74°C). Do not rely on the fresh-wing timing for frozen chicken.

7. Can I prepare the wings ahead of time?

You can mix the seasoning in advance and separate the raw wings earlier in the day. Keep raw chicken refrigerated until cooking. You can also cook the wings ahead and refrigerate them for 3–4 days, then reheat in the air fryer until they reach 165°F (74°C). For the best crispness, serve them immediately after cooking.

Nutritional Breakdown (Per Serving)

The estimates below assume four servings from approximately 900 g of raw chicken wings, one tablespoon of olive oil, baking powder, and the dry seasonings listed in the recipe. Actual nutrition varies according to the ratio of flats to drumettes, the amount of skin and fat consumed, and the size of the finished portions.

Nutrient	Approximate amount per serving
Calories	350–430 kcal
Protein	30–35 g
Total fat	24–30 g
Total carbohydrates	1–2 g
Fiber	0–1 g
Net carbohydrates	1–2 g

These figures are estimates for the wings alone, without optional dips or sauces. Commercial sauces can substantially change the carbohydrate and calorie totals. For precise tracking, calculate nutrition using the weight and product information for your specific ingredients.

Recipe Snapshot

Recipe Name: Crispy Air Fryer Spicy Chicken Wings

Prep Time: 10 minutes

Cook Time: 22–30 minutes

Total Time: Approximately 32–40 minutes

Course: Appetizer, Main Course, Snack

Cuisine: American-inspired

Servings: 4

Calories: Approximately 350–430 per serving

Air Fryer Temperature: 380°F (193°C)

Optional Crisping Temperature: 400°F (204°C)

Internal Temperature: At least 165°F (74°C); 175–185°F (79–85°C) for a more tender wing texture if desired.

Dietary Notes: Low-carb, keto-friendly, gluten-free when all seasonings are certified gluten-free.