Cobalt
The facts below are what the maker publishes about Cobalt, checked and dated. Our editors have not written about it yet.
The facts
Each one read from Cobalt's own pages, with the date it was checked.
What it does
- Ads and tracking
- Cobalt says it has no ads or trackers and does not store or track information about individual people.checked 12 Oct 2026
- Analytics
- Cobalt says it uses self-hosted Plausible for anonymous, aggregated traffic analytics and provides an option to opt out.checked 12 Oct 2026
- Audio options
- Audio settings offer Best, MP3, OGG, WAV, and Opus formats and bitrate choices from 320kb/s to 8kb/s.checked 12 Oct 2026
- Community instances
- Cobalt warns that it does not control community processing instances and advises users to choose hosts they trust.checked 12 Oct 2026
- Formats
- Cobalt’s remux tool supports MP4, WebM, MP3, OGG, Opus, WAV, and M4A files.checked 12 Oct 2026
- Hosting protections
- The privacy policy says Cloudflare is used for DDoS and abuse protection, bot protection, and hosting and deploying the web app.checked 12 Oct 2026
- Intended users
- The maker says Cobalt is used by artists, educators, and content creators.checked 12 Oct 2026
- Limits
- Cobalt says its downloader can only download free and publicly accessible content.checked 12 Oct 2026
- Local processing
- Cobalt says remuxing and transcoding can happen directly on the user's device; its remux page says files stay on the device.checked 12 Oct 2026
- Maximum video quality
- 8kchecked 20 Sep 2026
- Output formats
- MP4,WebM,MKV,MP3,OGG,WAV,Opus,GIFchecked 20 Sep 2026
- Pricing model
- Cobalt describes itself as a service made for public benefit and not for profit, and invites users to support it with donations.checked 12 Oct 2026
- Privacy
- Cobalt says temporary tunnel data is encrypted with AES-256, stored in server RAM for 90 seconds, and then irreversibly purged.checked 12 Oct 2026
- Purpose
- Cobalt helps users save video, audio, photos, and GIFs from websites by pasting a link.checked 12 Oct 2026
- Remux behavior
- Cobalt says remuxing copies existing codec data into a new container without re-encoding the media.checked 12 Oct 2026
- Remux formats
- The remux page lists MP4, WebM, MP3, OGG, Opus, WAV, and M4A as supported formats.checked 12 Oct 2026
- Remuxing
- Remuxing copies existing codec data into a new media container without re-encoding, and runs locally on the device.checked 12 Oct 2026
- Security services
- Cobalt says it uses Cloudflare for DDoS and abuse protection, bot protection through Turnstile, and hosting and deployment of the web app.checked 12 Oct 2026
- Self-hosting
- Cobalt says it is easily self-hostable and links to instructions for running an instance with Docker Compose or outside Docker.checked 12 Oct 2026
- Subtitle downloads
- Yeschecked 20 Sep 2026
- Subtitles
- Cobalt can add subtitles in a preferred language when they are available, subject to service-specific limitations.checked 12 Oct 2026
Where it runs
- Device platforms
- webchecked 20 Sep 2026
- Device processing
- When supported, media requiring additional processing is processed on the user’s device; otherwise, server processing streams the result without storing it on disk.checked 12 Oct 2026
Money
- Free plan
- Yeschecked 20 Sep 2026
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