Free Online Video Converter, Compressor & Audio Extractor
Convert MOV, MKV, WebM, and MP4 videos, extract MP3 audio tracks, compress video size, trim clips, and create GIFs online.
MOV to MP4
Convert Apple iPhone and Mac QuickTime (.mov) videos to universally compatible H.264 MP4 format online for free with zero quality loss.
MKV to MP4
Convert MKV (Matroska) video files to standard MP4 format online for free. Play MKV recordings smoothly in browsers, Premiere, Final Cut, and mobile devices.
WebM to MP4
Convert WebM (VP8/VP9/AV1) videos to universal H.264 MP4 format online for free. Share and edit web recordings on iPhone, Mac, Windows, and social media.
MP4 to WebM
Convert MP4 videos to lightweight WebM (VP9) format online for free. Reduce HTML5 background video and landing page media size for faster web performance.
MP4 to MP3
Extract MP3 audio from local MP4 files with browser-side FFmpeg, multi-file queueing, and single-file or ZIP batch download.
Video Compressor
Compress MP4, MOV, WebM, and MKV video files online without losing visual quality. Reduce video size for Discord, email attachments, WhatsApp, and web.
Video Trimmer
Trim and cut MP4, MOV, and WebM video clips online for free. Set exact start and end timestamps and export lossless clips with zero re-encoding delay.
MP4 to GIF
Convert MP4, MOV, and WebM video clips into high-quality animated GIFs online. Custom frame rate (FPS), resolution scaling, and adaptive color palette generation.
Extract Audio from Video
Extract clean audio tracks from MP4, MOV, MKV, and WebM video files online for free. Save extracted soundtracks as MP3 locally in your browser.
Remove Silence from Video
Automatically detect and cut silent pauses, dead air, and awkward gaps from talking-head videos, tutorials, and lectures online.
Why Choose ConvertZuno?
No proprietary software downloads, no account setup, and no retention queues.
Upload or Drag Assets
Drop individual files or entire folders up to 1GB. Client-side inspection reads codec containers instantly before transformation.
Configure Parameters
Choose your target format, color bit depth, alpha channel settings, or audio bitrates. Strip or preserve camera EXIF tags.
Instant Preservation
Download your converted files immediately, or pack multi-file queues into a consolidated ZIP archive. Artifacts purge within 60 minutes.
Explore Tools by File Type
Powerful batch-capable utilities for every media format
Image Tools
Lossless compression, background transparent handling, and format conversion.
Video Tools
High-speed encoding for web reels, social clips, and master video captures.
Audio Tools
Lossless acoustic conversion, bitrate adjustment, and channel resampling.
PDF & Documents
Split, merge, rasterize, and shrink documents with zero font loss.
Why Choose ConvertZuno?
Fast, free, and built with privacy first. No sign up required, no watermarks, and files are processed securely.
Local Browser WebAssembly Execution
Standard image and audio files are compiled directly within your browser thread using C-speed WASM. Data remains inside your physical hardware with zero transmission delays.
Zero-Knowledge Ephemeral Pipeline
We never index, examine, or ingest creative media for AI model training. When cloud transcoding is required, all temporary assets are permanently purged within 60 minutes.
Multi-File Concurrency & ZIP Packing
Drag multiple files simultaneously. The engine leverages parallel thread distribution, delivering transformed files individually or packaged as a consolidated ZIP container.
Unrestricted Access, Zero Registration
No mandatory email capture, credit card credentials, or software install blockers. Simply drop your asset, configure parameters, and proceed immediately.
More Power for Your Workflow
Batch convert, compress and optimize unlimited files with advanced tools, priority queues and automation.
Batch Processing
Transcode up to 200 files simultaneously with one-click consolidated ZIP download.
Larger Files
Generous 10GB per file limits for 4K video clips and uncompressed lossless audio masters.
Saved Presets
Store custom compression algorithms, custom resolutions, and frequently used output profiles.
Automation & API
Streamline recurring workflows with fast developer endpoints, webhooks, and CLI scripts.
Early access opening soon. Free forever tools will always remain free.
Frequently Asked Questions
Everything you need to know about our browser WebAssembly and secure cloud pipelines.