Video Converter - Remux

Convert videos to 20+ formats, compress to save storage, extract audio, create GIFs, and edit — all on your device, with no uploads or cloud processing.

CONVERT TO ANY FORMAT
MP4, MOV, MKV, WebM, AVI, WMV, FLV, MPG, 3GP, M4V, F4V, TS, MTS, OGV, GIF — plus audio formats MP3, M4A, WAV, AIF, and FLAC. Supports H.264, H.265/HEVC, VP9, AV1, MPEG-2, AAC, Opus, FLAC, and more codecs than any
other mobile converter.

SPACE SAVER — FREE UP STORAGE
Automatically scans your photo library for large videos and compresses them in place. Choose light, medium, or heavy compression. See estimated savings before you start. Resume interrupted sessions right where you
left off.

QUICK ACTIONS
One-tap shortcuts for the most common tasks: Trim, Crop, Rotate, Flip, Remove Audio, Extract Audio, Create GIF, Compress, Add Subtitles, and Watermark.

POWERFUL VIDEO EDITOR
• Trim & cut videos with frame-accurate preview
• Crop to any aspect ratio
• Rotate and flip
• Change resolution (up to 4K) and frame rate (up to 300 fps)
• Burn subtitles (SRT, ASS, VTT) with custom styling
• Add text or image watermarks with opacity, shadow & blur
• Adjust or remove audio, select audio tracks

VIDEO COMPRESSOR
Reduce video file size without visible quality loss. Fine-tune with CRF, bitrate, codec profiles, and pixel formats — or let a preset handle it.

25+ PRESETS — NO GUESSWORK
Optimized presets for Final Cut Pro, After Effects, iMovie, and InVideo. Compression presets at light, medium, and heavy levels. Resolution presets from 4K down to 144p. Speed-optimized and quality-first options.
HDR support.

BATCH CONVERT & COMPRESS
Import multiple videos and convert or compress them all at once with the same settings. Apply to All with one tap.

GPU-ACCELERATED
Hardware encoding via VideoToolbox for significantly faster conversions on supported devices, with automatic software fallback.

LIVE ACTIVITY (iOS)
Track conversion progress right on your lock screen. See the current file, total progress, and output format without opening the app.

EXTRACT AUDIO FROM VIDEO
Pull audio from any video as MP3, M4A, WAV, AIF, or FLAC. Perfect for saving music, podcasts, or voiceovers from video files.

VIDEO TO GIF
Convert any video clip to an animated GIF — ideal for social media, messaging, and memes.

PRIVACY FIRST
Every conversion happens on your device. Your videos are never uploaded anywhere.

AVAILABLE IN 9 LANGUAGES
English, Spanish, French, Portuguese, Arabic, Hindi, Korean, Russian, and Chinese.

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Free version includes single-file conversion, basic editing, audio extraction, and GIF creation. Upgrade to Pro for batch processing, all formats, advanced editing (crop, rotate, watermark, subtitles), 25+
presets, 4K export, and unlimited Space Saver.

This app uses FFmpeg (ffmpeg.org). Source code: https://remux.app/source

Privacy Policy: https://remux.app/privacy_policy
Terms and Conditions: https://remux.app/terms_and_conditions

Recent changes:
• Fixed crash during conversion on Android 16
• Fixed empty (0 byte) saved files
• Fixed crash when saving twice in a row
• Faster Android hardware encoding (now built on FFmpeg)
• Output FPS now caps at the source — no upscaling
• Smarter rating prompt (only after a successful save)
• In-app updates via the Play Store
• Non-English filenames now saved correctly