# transmute-app/transmute

Self hosted file converter and compression tool for images, video, audio, json, excel and more. Supports over 3,000 conversions!

Repository: https://github.com/transmute-app/transmute
Canonical: https://ross.abutalabs.com/products/transmute
Homepage: https://transmute.sh
Language: Python
License: MIT
License Family: permissive
Topics: convert, docker, python, file-converter, self-hosted, audio-converter, image-converter, pdf-converter, fastapi, react, vite
Last push: 2026-08-22T15:05:24+00:00

## Health v2 (maintenance only)
Score: 79/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 90, longevity 14
- inputs: {"age_days": 197, "days_push": 11, "days_rel": 65, "gap_med": 1.5, "n_releases_24m": 31}
- flags: no_readme
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1319, forks 87 (observed 2026-08-28T04:04:21.177288+00:00)

## What it is
Transmute is a self-hosted web application for converting and compressing files, supporting images, video, audio, JSON, Excel, PDF and more with over 3,000 conversion combinations. It is built with a Python FastAPI backend and a React frontend, deployable via Docker.

## Use cases
- convert images to different formats on my own server
- compress videos without uploading to third-party sites
- self-hosted file converter for audio files
- convert excel files to
- compress pdf documents privately
- batch convert media files via a web ui

## When to choose
- you need a privacy-friendly, self-hosted alternative to online converters
- you handle many file types and want one tool for 3,000+ conversions
- you can deploy Docker services on your own infrastructure

## When to avoid
- you need a lightweight CLI-only converter without a web server
- you cannot run Docker or a Python backend
- you need extremely high-volume server-side transcoding pipelines better served by ffmpeg directly

## Facets
- artifact type: application
- maturity: active
- function: image-processing, audio-processing, video-processing, pdf, compression, self-hosted
- domain: files, media, self-hosted, developer-tools
- platform: self-hosted, cross-platform
- tags: file-converter, fastapi, react, file-compression, media-conversion, docker, web-server

## Member repositories
- transmute-app/transmute (main) score 79

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:21.177288+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:47:55.802718+00:00, confidence not recorded.
  - homepage: https://transmute.sh (fetched 2026-08-29T12:06:36.377789+00:00, sha 9f3a8fba6d5f)
- Data as of 2026-08-30T08:39:29.467469+00:00.