Converts MP4 files to AVI format — universal video playback on any device to legacy video compatibility. All conversion happens locally in your browser with no file size limits.
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Convert MKV video files to AVI format directly in your browser. 100% free, private — your files never leave your device.
Convert MP4 video files to WEBM format directly in your browser. 100% free, private — your files never leave your device.
Convert MOV video files to AVI format directly in your browser. 100% free, private — your files never leave your device.
Convert AVI video files to MP4 format directly in your browser. 100% free, private — your files never leave your device.
Convert MKV video files to MP4 format directly in your browser. 100% free, private — your files never leave your device.
MP4 (MPEG-4 Part 14) uses lossy compressed encoding and is best for universal video playback on any device — phones, smart TVs, web browsers, and social media. AVI (Audio Video Interleave) uses uncompressed or lossy encoding and excels at legacy video compatibility — older software, embedded systems, and archival playback. Converting between them lets you take advantage of each format's strengths — for example, using a compressed format for sharing and a lossless format for editing. All conversion happens locally in your browser with no file size limits.
The converter typically outputs AVI with MJPEG or MPEG-4 codecs. Choose the codec based on your compatibility needs — MJPEG is most widely supported but produces larger files.
If re-encoding occurs, quality depends on the chosen bitrate and codec. Selecting high quality settings preserves visual fidelity. Direct stream copy (no re-encode) is possible if codecs are compatible.
Videos up to 500MB are supported. Larger files may cause memory issues in the browser. For very long videos, consider trimming first.
Yes. All conversion runs in your browser using FFmpeg WASM. No video files are uploaded to any server.
Video to MP3 Converter
Extracts the audio track from uploaded video files (MP4, MOV, AVI, WebM) and encodes it as a high-quality MP3 file. No signup or account required.
Crop Video
Crop the visual area of your MP4, MOV, AVI, or WebM video directly in the browser with preset aspect ratios or custom selections. No signup or account required.
Video Compressor
Reduces MP4, MOV, and WebM video file sizes using configurable CRF (Constant Rate Factor) encoding, resolution scaling, and bitrate control. Includes a quality preview before processing. Handles files up to 500MB.
Video to GIF
Convert MP4/WebM to GIF animations. Max 500MB input. Everything runs locally in your browser — nothing is uploaded.
Subtitle Translator
Accepts SRT or VTT subtitle files and translates their text content into any of 100+ target languages while preserving exact timing codes and frame. Uses cloud-based processing.
Video Watermark Adder
Add a logo image or custom text watermark to your videos with position and opacity controls. 100% browser-based.