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100% Free & Private — Zero Server Uploads

Free Online Video & Audio Tools

Edit, compress, record, and convert videos and audio tracks locally in your browser. Powered by WebAssembly with zero server uploads and total privacy.

Compress Video
Shrink MP4, WebM, and MOV video file sizes without visible quality loss.
Use Compress Video →
Trim Video
Cut video start and end points with millisecond precision.
Use Trim Video →
Video to GIF
Convert video clips into lightweight, animated GIFs.
Use Video to GIF →
Extract Audio from Video
Rip background music and voice tracks from videos into MP3 or WAV.
Use Extract Audio from Video →
Screen Recorder
Capture desktop screen, window, or tab with microphone & webcam audio.
Use Screen Recorder →
Mute Video
Strip unwanted audio tracks and background noise from videos.
Use Mute Video →
Change Video Speed
Create time-lapses (2x–8x) or smooth slow-motion (0.25x–0.75x) videos.
Use Change Video Speed →
Merge Videos
Combine multiple video clips into one continuous movie.
Use Merge Videos →
Crop Video
Crop aspect ratios to 9:16 for TikTok/Reels or 1:1 for Instagram.
Use Crop Video →
Extract Video Frames
Capture full-resolution still photos and screenshots from video files.
Use Extract Video Frames →
Video Format Converter
Convert between MP4, WebM, MOV, MKV, and AVI video formats.
Use Video Format Converter →
Audio Format Converter
Convert between MP3, WAV, AAC, M4A, OGG, and FLAC audio files.
Use Audio Format Converter →
Trim Audio
Cut and trim MP3 music and audio recordings with visual waveform.
Use Trim Audio →
Change Audio Volume
Boost quiet audio tracks up to 300% or normalize loud sounds.
Use Change Audio Volume →
Merge Audio Files
Combine multiple MP3 sound tracks into a continuous audio file.
Use Merge Audio Files →
Speech to Text
Real-time voice dictation and speech-to-text transcription.
Use Speech to Text →
Text to Speech
Convert written text into natural-sounding spoken audio.
Use Text to Speech →

Frequently Asked Questions

How can videos be processed in the browser without uploading?

We use FFmpeg compiled to WebAssembly (ffmpeg.wasm). The video processing engine runs locally on your computer's CPU and GPU, giving you desktop-grade editing power directly in your browser tab.

Is there a video duration or file size limit?

Because processing is local, you don't face server upload caps or bandwidth throttling. Performance depends on your device's memory and processor speed.

Why Zaeyon?

Private, free, and browser-based — no account, no uploads, no compromises.

Zero Uploads

Your files never leave your device. All processing happens locally in your browser memory — nothing is sent to any server.

100% Free Forever

No subscriptions, no hidden fees, no daily limits. Every tool on Zaeyon is permanently free to use without an account.

Instant & Powerful

Powered by WebAssembly — the same low-level technology used in native apps — so processing is fast even for large files.

Works Offline

Once the page loads, the WebAssembly engine runs entirely on your device. No internet connection needed to process files.

Works Everywhere

No software installation required. Runs directly in your browser on Windows, Mac, Linux, iOS, and Android.