# tejaswigowda/ffmpeg-webCLI

A browser-based video editor powered by ffmpeg.wasm. No uploads, no servers -- all processing happens locally in your browser using WebAssembly.

Repository: https://github.com/tejaswigowda/ffmpeg-webCLI
Canonical: https://ross.abutalabs.com/products/ffmpeg-webcli
Homepage: https://tejaswigowda.com/ffmpeg-webCLI/
Language: JavaScript
License: GPL-3.0
License Family: copyleft
Topics: audio-editor, browser-based, client-side, ffmpeg-wasm, javascript, local-first, media-processing, offline-first, open-source, privacy-first, progressive-web-app, pwa, video-editor, video-processing, wasm, web-cli, web-worker, webassembly, zero-upload
Last push: 2026-06-28T16:58:33+00:00

## Health v2 (maintenance only)
Score: 73/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 89, release rhythm 90, longevity 6
- inputs: {"age_days": 95, "days_push": 66, "days_rel": 71, "gap_med": 13, "n_releases_24m": 2}
- flags: young
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1377, forks 125 (observed 2026-08-28T04:04:33.442761+00:00)

## What it is
A browser-based video and audio editor powered by ffmpeg.wasm that performs all media processing locally via WebAssembly and Web Workers. It is an offline-first progressive web app requiring no uploads or servers, offering 30+ operations like conversion, compression, trimming, GIF creation, and captioning.

## Use cases
- convert video to mp4 or webm without uploading files
- compress a large video in the browser
- make an animated gif from a video clip
- trim or crop a video privately offline
- extract audio track from a video to mp3
- auto-caption or embed subtitles in a video
- batch process multiple videos with the same operation

## When to choose
- your media files are private or sensitive and must not leave your device
- you cannot or do not want to install desktop video software
- you need offline-capable editing via a PWA
- you want free ffmpeg operations with a friendly UI instead of the command line

## When to avoid
- you need very fast processing of huge files, since wasm is slower than native ffmpeg
- you need advanced professional NLE features like multi-track timeline editing
- you require server-side rendering farms or hardware-accelerated encoding

## Facets
- artifact type: application
- maturity: active
- function: video-processing, audio-processing, image-processing, wasm
- domain: media, privacy, web-development, developer-tools
- platform: browser, cross-platform
- tags: ffmpeg-wasm, local-first, pwa, offline-first, zero-upload, client-side, web-worker, video-editor, privacy-first, video, web-server

## Member repositories
- tejaswigowda/ffmpeg-webCLI (main) score 73

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:33.442761+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 2026-08-30T04:40:27.719010+00:00, confidence not recorded.
  - readme: https://github.com/tejaswigowda/ffmpeg-webCLI (fetched 2026-08-28T04:04:33.442761+00:00, sha cac403215504)
  - homepage: https://tejaswigowda.com/ffmpeg-webCLI/ (fetched 2026-08-29T11:56:53.043661+00:00, sha 1c6a5718de63)
- Data as of 2026-08-30T08:39:29.467469+00:00.