Conversion category
Audio & video converters
Browse private Audio & video converters that run in your browser, explain expected output, and link to focused format-pair tools.
9 tools. 9 local-first tools for Audio & video. Choose a converter by source and download format.
Audio & video
Encode everyday sound and video files locally using browser media capabilities and WebAssembly.
MP3WAV
Convert a compressed MP3 to an uncompressed WAV for professional audio editing, DAW import or workflows that require lossless source audio.Open converterWAVMP3
Compress a large WAV audio file to a space-efficient MP3 for streaming, sharing or upload to platforms with file size limits.Open converterOGGMP3
Convert an OGG Vorbis audio file to MP3 for playback on devices and platforms with broader MP3 support than OGG.Open converterAACMP3
Convert an AAC audio file — the default format for Apple devices and iTunes — to MP3 for players and services that prefer MPEG audio.Open converterFLACMP3
Compress a lossless FLAC audio file to a streaming-ready MP3. FLAC preserves studio quality; this conversion produces a smaller file for everyday listening.Open converterMP4GIF
Extract a short clip from an MP4 video and convert it to an animated GIF for use in presentations, documentation or social media. GIF carries no audio.Open converterWebMMP4
Convert a WebM screen recording or web capture to an MP4 for playback on Apple devices, Windows and upload to video platforms that do not accept WebM.Open converterMOVMP4
Convert an Apple QuickTime MOV video to a universally supported MP4 for sharing, uploading or playing on non-Apple devices.Open converterAVIMP4
Re-encode a legacy AVI video file to a modern H.264 MP4 for streaming, sharing and upload to platforms that no longer accept AVI.Open converterHow to choose the right converter
- Use media converters when you need a file that works in a player, browser, editor, presentation tool or social workflow that does not support the source format.
- Choose audio-only outputs for sound compatibility, MP4 for broad video support, and GIF only for short visual loops where file size is acceptable.
- Media conversion is heavier than text or image conversion, so device memory, browser support and source duration affect reliability.
Common Audio & video conversion use cases
- Convert MP3, WAV, OGG, AAC or FLAC files for playback compatibility across apps and devices.
- Turn short MP4 clips into GIFs for lightweight visual sharing where sound is not required.
- Convert WebM, MOV or AVI video into MP4 for broader browser and presentation support.
- Prepare local media files without uploading private recordings to a remote conversion queue.
Best practices for clean results
- Use shorter source files when possible because long media conversions need more browser memory and processing time.
- Check sync, duration, volume and visual quality after download before publishing or deleting the source.
- Keep the browser tab open until conversion finishes, especially when FFmpeg-based processing is running.
Category FAQ
Audio & video conversion questions
Why can media conversion take longer?
Audio and video files require decoding and re-encoding. That work runs locally and depends on file duration, codec, browser support and device performance.
Does MP4-to-GIF keep audio?
No. GIF is an image animation format and does not preserve the audio track from a video.
Are video files uploaded?
No. ConvertME media tools are designed for local browser processing, although some engines may download runtime components before converting.