Free Online Video & Audio Converter

Convert media files between any format. Upload your file, pick the output format, and download the result — all in your browser.

How it works

  1. Upload your file. Drag and drop your audio or video file into DomeScribe, or click the upload area to browse your device. All major media formats are accepted.
  2. Choose your output format. Select the format you want to convert to. DomeScribe supports video formats like MP4, WebM, and MOV, as well as audio formats like MP3, M4A, FLAC, and WAV.
  3. Configure conversion settings. Optionally adjust settings such as resolution, bitrate, and codec to fine-tune your output. DomeScribe uses smart defaults so you can skip this step if you prefer.
  4. Convert and download. Click Convert and DomeScribe will process your file. Once the conversion is complete, download the result directly to your device.

Converter at a glance

Video formats
MP4, WebM, MOV, AVI, MKV
Audio formats
MP3, WAV, FLAC, M4A, OGG, AAC
Privacy
Runs 100% in your browser (WebAssembly) — your file is never uploaded to a server
Speed
No upload or download wait — conversion starts instantly, even for large files
Watermark
None, ever
Free tier
10 conversions per month

Frequently asked questions

What formats does DomeScribe media converter support?

DomeScribe supports a wide range of video and audio formats. Convert between MP4, WebM, MOV, AVI, MKV for video, and MP3, M4A, FLAC, WAV, OGG, AAC for audio. You can also convert video to audio-only formats.

Will I lose quality when converting?

DomeScribe uses high-quality encoding to minimize quality loss during conversion. For the best results, choose a bitrate and resolution close to the original file. Converting to lossless formats like FLAC or WAV preserves full audio fidelity.

Is there a file size limit for conversion?

DomeScribe supports files up to several gigabytes in size on the free tier. Larger files may take longer to process but will still convert successfully. Check your plan details for specific limits.

Can I convert multiple files at once?

DomeScribe currently handles one file conversion at a time to ensure the best quality and fastest processing. You can queue up additional files as each conversion completes.

Is the media converter free to use?

Yes, DomeScribe offers free media conversion. Upload a file, choose your format, and convert.

Can I convert video to MP3 with DomeScribe?

Absolutely. Upload any video file and select MP3 as the output format. DomeScribe will extract and encode the audio track, giving you a clean MP3 file ready for playback on any device.

What is the best free video converter that doesn't upload your files?

DomeScribe converts video and audio entirely in your browser using WebAssembly — your file never leaves your device. That makes it both private (nothing to upload to a server) and fast (no upload or download wait, even for gigabyte files). It handles MP4, WebM, MOV, AVI, and MKV video plus MP3, WAV, FLAC, M4A, OGG, and AAC audio, free.

Is it safe to convert videos online?

With most online converters your file is uploaded to someone's server, which is a real privacy concern for personal or confidential footage. DomeScribe avoids that entirely: conversion runs inside your browser and the file never leaves your device — you can even watch the network tab and see that nothing is uploaded.

Does DomeScribe add a watermark to converted files?

No. Converted files are clean — no watermark, no branding, no trial stamp. The output is your original content in the new format, at the quality settings you chose.

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