Transmute
The Self-Hosted File Converter
Transmute is an open-source, self-hosted file converter and compressor that runs on your own hardware, keeping files local rather than uploading them to third-party services. It covers images, video, audio, documents, data, diagrams, 3D models, fonts, and subtitles, with conversion powered by tools such as FFmpeg, Pillow, and Pandoc. It can also compress images, PDFs, audio, video, and GIFs within the same format, with selectable compression levels.
The product offers a web interface for drag-and-drop conversions and a REST API with OpenAPI documentation, exposed through FastAPI. It includes OIDC/SSO integration with providers such as Authentik and Authelia, user management, statistics, job and settings views, and built-in themes with admin-defined color options. Deployment is handled through Docker Compose, and the project is MIT-licensed. It is intended for individuals and teams that want private, self-hosted conversion without file size caps, watermarks, rate limits, or paid tiers.
12 alternatives to Transmute
Ranked by how well each tool replaces Transmute: shared features, audience, price and popularity.
Online file conversion service and API, operated by Lunaweb GmbH in Germany.
Covers 4 of 15 key features.
Free plan67 out of 100 matchUsage-based- 60 out of 100 matchFree
- 60 out of 100 matchFree
- 60 out of 100 matchContact sales
- 59 out of 100 match$4/mo
Self-hosted photo and video management solution.
Covers 4 of 15 key features.
Free planOpen source59 out of 100 matchContact salesThe simple, quick and secure way to send your files around the world without an account. (
Covers 1 of 15 key features.
Free plan59 out of 100 match$8/mo- 58 out of 100 matchContact sales
- 58 out of 100 matchContact sales
Free and open-source cloud storage encryption
Covers 4 of 15 key features.
Free planOpen source57 out of 100 matchFree- 57 out of 100 match$69/mo