How does the AI video add audio tool work?

Our AI-powered tool analyzes your video’s visuals, scenes, and pacing to generate matching audio tracks, including background music, foley, and sound effects. Choose from four advanced models, each optimized for different audio needs. Simply upload your video, select a model, and the AI will automatically generate and sync the perfect audio to your footage.

Is the AI video audio generator free to use?

Yes! Every new user receives 10 free credits upon signup—no credit card required. You can use these credits to generate audio for videos with any of our AI models, experiencing the full power of our platform without any upfront cost or subscription.

Are there any subscription fees or hidden charges?

No, our platform is completely pay-as-you-go with no subscriptions or monthly fees. You only pay for credits as you need them, and your first 10 credits are free. This flexibility lets you generate AI audio for your videos at your own pace, without any financial commitment.

Can I use the generated audio for commercial purposes?

Absolutely. All audio generated with our AI models comes with a full commercial license, so you can safely use it in YouTube videos, ads, films, social media, and more without worrying about copyright issues.

What AI models are available for video audio generation?

We offer four cutting-edge AI models: Hunyuan Video Foley (for realistic sound effects), ThinkSound (contextual audio), MMAudio V2 (high-fidelity synthesis), and Kling Video-to-Audio (custom effects & ASMR). Each model has unique features and credit costs, allowing you to choose the best fit for your project.

How do credits work for generating audio?

Each AI model has a specified credit cost per use, ranging from 1 to 4 credits. You receive 10 free credits at signup and can purchase more anytime—no subscriptions required! Credits let you generate, preview, and download AI-enhanced audio for your videos with full flexibility.

🎬🔊 AI Video Audio Tool – Free Credits!

Add Audio to Videos Instantly with AI – Free & No Subscription

Start with 10 free credits. No subscription, no monthly fees – just powerful AI for video audio generation.

Start Generating Free Browse Free Models ↓

✨ Best free alternative to Descript Overdub for video audio ✨ No subscription like Kapwing or LALAL.AI ✨ More flexible than AudioJungle – pay only for what you use ✨ Better pricing than Adobe Premiere plugins ✨ Free credits to rival Wisecut and Clipchamp ✨ Commercial use included – unlike most stock audio sites

500K+

Active Users

10M+

Audio Generations

4.9/5

User Rating

4+

AI Audio Models

Why Choose JAI Portal?

🎵

Instant Soundtracks

Automatically add background music, foley, or sound effects to your videos with just one click – all powered by advanced AI.

🚫💳

No Subscription Needed

Enjoy a completely pay-as-you-go platform. Get 10 free credits on signup and generate as you need – no monthly billing ever.

🧠

Contextual Audio Matching

AI models intelligently analyze your video content to create audio that perfectly matches the mood, timing, and scene transitions.

🎬✨

High-Quality Results

Produce professional-grade audio for any video project, from YouTube clips to social media posts and ads, with seamless audio-video integration.

Perfect For Every Use Case

Create professional content for any purpose

📹

YouTube Creators

Quickly add royalty-free music and sound effects to your YouTube videos for a polished, professional touch.

📱

Social Media Clips

Auto-generate engaging background audio for TikTok, Instagram Reels, or Facebook videos with AI-powered soundtracks.

🎞️

Short Films & Documentaries

Enhance scenes with realistic foley and environmental sounds to create immersive cinematic experiences.

🛌

ASMR Video Production

Add ultra-realistic, soothing ASMR audio layers for relaxation and sensory content using Kling's ASMR mode.

💡

Product Demos & Explainers

Make product videos pop with matching narration, music, and sound effects generated automatically.

🎮

Game Highlight Clips

Add hype-worthy soundtracks or dramatic effects to gaming video reels without manual audio editing.

📢

Ads & Marketing Videos

Create catchy, brand-aligned audio tracks for promotional content that grabs attention instantly.

🕰️

Silent Footage Restoration

Bring life to old or silent video clips by generating accurate background sounds and dialogue.

Get Inspired: Example Prompts

Try these prompts to get started

Short Films

"Add cinematic orchestral music and soft foley to this suspenseful short film scene."

YouTube / Tutorials

"Generate cheerful background music and subtle sound effects for my cooking tutorial video."

ASMR

"Create ASMR soundscape with gentle rain and whispering effects for relaxation video."

Sports / Gaming

"Add energetic electronic beats and dynamic crowd noises to highlight my sports montage."

Documentaries

"Produce realistic city street sounds and distant dialogue for this urban documentary clip."

Ads / Product Demos

"Sync dramatic sound effects and suspenseful music to this product launch animation."

Social Media

"Generate ambient background music with nature sounds for my Instagram travel reel."

Animation

"Add custom sci-fi sound effects and futuristic background score to my animated short."

4 Powerful AI Audio Models for Video

Choose from Hunyuan Foley, ThinkSound, MMAudio V2, and Kling Video-to-Audio for tailored, high-quality results.

✓ No Watermarks ✓ Commercial License Included ✓ 10 Free Credits ✓ No Subscription Fees ✓ Fast & Secure Processing

🎉 Try with Free Credits!

Hunyuan Video Foley

Add realistic sound effects to videos that match the on-screen action.

1.0 credits

🎉 Try with Free Credits!

MMAudio V2

Add realistic sound effects to your videos automatically

2.0 credits

🎉 Try with Free Credits!

ThinkSound

Generate contextual audio that matches your video's mood and timing

3.0 credits

🎉 Try with Free Credits!

Kling Video-to-Audio

Add realistic sound effects and music to videos. Includes ASMR mode.

4.0 credits

View All 4 Models

How It Works

Start creating in 3 simple steps

1

Sign Up Free

Create your account in seconds — get 10 free credits instantly. No credit card or subscription required to start.

2

Choose AI Audio Model

Select from 4 cutting-edge AI models for video audio generation, each designed for different styles and needs.

3

Generate & Download

Upload your video, let the AI add audio, then preview and download your enhanced video in seconds.

Get Started Free

Loved by Creators Worldwide

See what our users are saying

★★★★★

"Adding music and sound effects to my videos has never been easier. The AI matches the mood perfectly, and I love that there are no monthly fees. It’s a must-have for any video producer!"

Rachel Kim

YouTube Content Creator

★★★★★

"I used the Kling ASMR model to enhance my short film’s atmosphere—absolutely stunning results! The free credits let me test everything before buying more, which is super fair."

Arjun Patel

Indie Filmmaker

★★★★★

"The AI-generated audio sounds so natural! My Instagram and TikTok videos get way more engagement now. No subscription and pay-as-you-go credits is a huge plus."

Maria Gonzalez

Social Media Manager

★★★★★

"Perfect for quick product demo videos. The ability to instantly add professional audio with just a few credits is a game changer. Highly recommend for marketers!"

Derek Lee

E-commerce Marketer

★★★★★

"The sound design the AI creates is so immersive, especially for scenes that needed more atmosphere. No subscription means my workflow is flexible and affordable."

Sophie Dubois

Documentary Editor

★★★★★

"I use this tool to add hype music and effects to all my gaming highlight reels. It’s fast, intuitive, and the quality is top-notch. No hidden charges — just credits!"

Mason Wright

Game Streamer

★★★★★

"I love how easy it is to experiment with different audio styles for my animations. The AI models give creative freedom, and the free trial credits helped me get started risk-free."

Yuki Tanaka

Animation Student

What is an AI Video Add Audio Generator?

An AI video add audio generator is a cutting-edge tool that uses artificial intelligence to seamlessly add soundtracks, music, and sound effects to your videos. By analyzing the visual content, these AI models generate perfectly timed audio that matches the action, mood, and transitions in your footage. Whether you’re a content creator, marketer, or filmmaker, AI-powered audio tools eliminate the need for manual editing and expensive sound libraries, making professional video sound design accessible to everyone.

Best Free AI Video Audio Tool – No Subscription Needed

JAI Portal offers the best free AI video audio tool for creators who want to enhance videos without monthly commitments. With 10 free credits and no credit card required, you can try out advanced audio models like Hunyuan Foley, ThinkSound, MMAudio V2, and Kling. Whether you need background music, foley, or ASMR, our platform provides instant, high-quality results with zero subscription fees—making it the top choice for pay-as-you-go video audio generation.

How to Easily Add Audio to Video with AI

Adding audio to your videos is simple with JAI Portal’s AI-powered tool. Just sign up for free, upload your video, and select from four powerful AI models to generate audio that fits your content. You can preview the results, make adjustments, and download your enhanced video in minutes. No need for complicated editing software or sound engineering skills—get stunning audio synced perfectly to your visuals with a few clicks.

Benefits of Using an AI Video Audio Generator

Using an AI video audio generator offers creators major advantages: instant soundtracks that match your video, royalty-free commercial use, and a pay-as-you-go credit system that saves money. With support for various styles—including cinematic, ASMR, and gaming—JAI Portal’s models produce high-quality, context-aware audio. Forget about monthly subscriptions; generate stunning video audio when you need it, at unbeatable value.

Creative Use Cases for AI-Powered Video Audio

AI-powered video audio tools are perfect for YouTube videos, social media clips, advertisements, short films, and more. Creators use them to add custom music, sound effects, and foley to silent footage, boost engagement with immersive sound, and quickly iterate on audio ideas. Whether you’re making gaming montages, explainer videos, or ASMR content, JAI Portal lets you elevate your video’s impact with audio that’s professionally crafted by AI.

Why Choose JAI Portal for Video Audio Generation?

JAI Portal stands out as the best free AI video audio generator thanks to its subscription-free model, 10 free credits, and a diverse range of AI models for pro-quality results. Enjoy instant access, a transparent credit system, and commercial licensing for every generation. Whether you’re a beginner or a seasoned editor, our platform delivers powerful audio tools without the hassle or hidden costs of traditional providers.

Frequently Asked Questions

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Transform your videos with professional audio—get 10 free credits, no subscription required.

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🎉 10 Free Credits • No Credit Card Required

Add Audio to Videos Instantly with AI – Free & No Subscription