Skip to content
Agents tracked: 444 Releases (7d): 644 Agent status: 4 with issuesSince last limit reset: Claude 30d · Codex 3d Updated Oct 23, 2026
AgentGid
✦ Ask

Image, video and PDF tools · by imput (imputnet)

cobalt

A browser tool that saves video, audio, photos and GIFs from public posts on social and video sites when you paste a link, with no ads or accounts.

It is fully open source, so you can read how a media proxy works and run your own instance instead of trusting a random download site.

APILicense unclear

Open cobalt.tools ↗ agent.md

For your project

Official API
Official API · Free Public instances such as api.cobalt.tools are not for other projects without explicit permission; host your own instance or ask an instance owner for access (API key or Turnstile-issued JWT).
“cobalt's main processing endpoint” github.com/imputnet/cobalt/blob/main/docs/api.md
Key
Needed
“hosted api instances (such as `api.cobalt.tools`) use bot protection and are **not** intended to be used in other projects without explicit permission.” github.com/imputnet/cobalt/blob/main/docs/api.md
Formats
JSON
Data download
No bulk download found
License
AGPL-3.0 (code); cobalt terms (official instance) AGPL covers the source code; downloaded media keeps the rights of its creator and platform, and the user is responsible for its use
Commercial use
Commercial use unclear
Credit
Not stated
Embedding
Embedding unclear
Using the website
Free

Read on cobalt's own pages on Oct 23, 2026 · license or terms · API docs. Check the license page before you ship.

For your agent

  • No hosted public API for third parties: self-host the AGPL-3.0 repo (github.com/imputnet/cobalt, docs/run-an-instance.md) and POST {"url": ...} as JSON to your instance; no npm/PyPI client is published by the maker. Content is proxied in RAM, nothing is stored; terms put copyright and platform-ToS compliance on the user.
  • Do not call api.cobalt.tools or other public instances from your app without the owner's explicit permission
  • Only save content you have rights to use; respect the source platform's terms and credit the original creator
  • If you modify and serve the code to users, AGPL-3.0 requires publishing your source

Paste into your agent: Read https://agentgid.com/resources/cobalt/agent.md before using cobalt.

What you can build

  • A self-hosted cobalt instance behind your own auth for a team that archives its own social posts
  • A personal 'save to library' bot that sends your own uploads through your instance into cloud storage
  • A study of the open-source proxy code as a template for streaming media without writing it to disk

More in Image, video and PDF tools

All 9 →

Photopea A full Photoshop-style editor running locally in a web page, which you can also drop into your own site with a single iframe URL. API, no keyCommercial OK TinyWow One bookmark covers most quick file chores, from PDF to Word to background removal, without signing up. License unclear remove.bg One API call turns a messy product or portrait shot into a clean cutout, which is why so many shop and design tools wire it in. Commercial: conditions Cleanup.pictures Painting over a tourist and watching the wall behind them appear is a neat, hands-on demo of AI inpainting. API (paid)Commercial OK Squoosh Dragging the slider between the original and an AVIF or WebP version shows exactly how much quality you trade for each kilobyte. Commercial OK TinEye Sorting matches by oldest first can show where a viral photo first appeared and how it was cropped or edited along the way. API (paid)Commercial: conditions

Something wrong or out of date? Tell us.