# imputnet/cobalt

best way to save what you love

Repository: https://github.com/imputnet/cobalt
Canonical: https://ross.abutalabs.com/products/cobalt
Homepage: https://cobalt.tools
Language: Svelte
License: AGPL-3.0
License Family: copyleft
Topics: downloader, reddit, social-media, twitter, vk, webapp, youtube, tiktok, vimeo, video, music, soundcloud, collaboration, javascript, svelte, typescript, youtube-downloader, instagram
Last push: 2026-04-06T11:59:56+00:00

## Health v2 (maintenance only)
Score: 66/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 76, release rhythm 35, longevity 100
- inputs: {"age_days": 1517, "days_push": 149, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 42273, forks 3662 (observed 2026-08-28T04:12:08.765831+00:00)

## What it is
Cobalt is a friendly, ad-free media downloader web app that lets users save video, audio, photos, and GIFs from sites like YouTube, Twitter, TikTok, Instagram, Reddit, and SoundCloud by simply pasting a link. It consists of an API backend and a Svelte frontend, is fully self-hostable, and processes media with a strict zero-log, privacy-first approach.

## Use cases
- download youtube videos without ads
- save tiktok videos as mp4
- download audio from soundcloud
- save twitter videos and gifs
- self-host a media downloader api
- download instagram photos and videos
- extract music from youtube links

## When to choose
- you want a clean, ad-free downloader for public media from many social platforms
- you need a privacy-respecting tool with no logs, trackers, or paywalls
- you want to self-host your own downloader instance or API
- you want a simple paste-link-get-file workflow on any device

## When to avoid
- you need to download paid, private, or DRM-protected content - cobalt only handles free public content
- you need bulk or scheduled downloading with queue management
- you require a desktop or mobile native app rather than a web interface
- your use case involves content whose terms of service prohibit downloading

## Facets
- artifact type: application
- maturity: active
- function: web-scraping, video-processing, audio-processing, http-server, gui
- domain: media, web-development, privacy, self-hosted, social-media
- platform: self-hosted, browser
- tags: media-downloader, video-downloader, youtube-downloader, social-media-downloader, svelte, typescript, no-ads, privacy-focused, self-hostable, web-server, docker, nodejs

## Member repositories
- imputnet/cobalt (main) score 66

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:12:08.765831+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 2026-08-29T16:22:43.102763+00:00, confidence not recorded.
  - readme: https://github.com/imputnet/cobalt (fetched 2026-08-28T04:12:08.765831+00:00, sha c9a8b5059c77)
  - homepage: https://cobalt.tools (fetched 2026-08-29T07:46:20.437876+00:00, sha 4d00cef9c0fe)
  - site_page: https://cobalt.tools/about/general (fetched 2026-08-29T07:46:20.440538+00:00, sha 61ea41ebbc9e)
  - site_page: https://cobalt.tools/about/terms (fetched 2026-08-29T07:46:20.442349+00:00, sha 8208c15ee163)
- Data as of 2026-08-30T08:39:29.467469+00:00.