Freedom251 › Coding Playgrounds
Trinket
by Trinket
What Trinket is
Trinket is a browser-based coding platform for classroom use. Learners can write and run Python, HTML, Java, and other code directly in a browser, then experiment with projects, save them, and share them. Teachers can create interactive lessons and coding courses, share or embed projects on other websites, and track student progress. Schools can create student logins without requiring real names or personal email addresses. Projects, courses, and assignments can be imported from trinket.io using an export ZIP or username. Trinket runs on the web and is also available as an open-source self-hosted project that people can read, contribute to, or operate independently. The community-hosted edition is operated by Strive Math, based in Singapore and founded in 2020. The Free and Free forever plans cost nothing, with all features and no paid plans or trials.
Who it suits
It suits teachers and schools that want browser coding lessons, learner experimentation, sharing, and progress tracking. Schools needing student accounts without real names or personal email addresses may also find it suitable.
What it does well
- Runs Python, HTML, Java, and other code in-browser
- Teachers can create interactive lessons and courses
- Student progress tracking is included
- Open-source self-hosted option available
- All features are free with no paid plans
What to know first
- No free trial is offered
- Self-hosting requires operating an independent copy
- Support response is aimed within 24 hours
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | All features free · No paid plans or trials | Free |
| Free forever | Every feature free · no paid plans or trials | Free |
As trinket.strivemath.org lists them, read 23 Sept 2026. The maker's own page has the final word.
Verdict
Trinket combines browser coding, classroom course creation, sharing, and educator tracking in one free service. Its web and open-source self-hosted options give schools different operating choices, while privacy and account controls address school use.
Facts from Trinket's own pages
- Data protection
- Strive says it will review and sign a school or district data protection agreement on request. · trinket.strivemath.org, 12 Oct 2026
- Deployment options
- none · trinket.strivemath.org, 23 Sept 2026
- Educator features
- Educators can track student progress. · trinket.strivemath.org, 12 Oct 2026
- Free plan
- Yes · trinket.strivemath.org, 23 Sept 2026
- Headquarters
- Singapore · trinket.strivemath.org, 19 Oct 2026
- Hosting company
- This community-hosted edition is operated by Strive Math, a Singapore-based education technology company founded in 2020. · trinket.strivemath.org, 12 Oct 2026
- Import
- Users can import projects, courses, and assignments from trinket.io using an export ZIP or username. · trinket.strivemath.org, 12 Oct 2026
- Interactive courses
- Teachers can create interactive lessons and coding courses for learners. · trinket.strivemath.org, 12 Oct 2026
- Languages
- Users can write and run Python, HTML, Java, and other code in the browser. · trinket.strivemath.org, 12 Oct 2026
- Learner features
- Learners can experiment with projects, save them, and share them. · trinket.strivemath.org, 12 Oct 2026
- Privacy
- The site says it does not sell personal information, show ads, or load third-party analytics or session recording. · trinket.strivemath.org, 12 Oct 2026
- Purpose
- Trinket is a browser-based coding platform designed for classroom use. · trinket.strivemath.org, 12 Oct 2026
- Security
- The site uses HTTPS and stores passwords as salted hashes rather than plain text. · trinket.strivemath.org, 12 Oct 2026
- Self-hosting
- The open source project can be read, contributed to, or run as an independent copy. · trinket.strivemath.org, 12 Oct 2026
- Sharing and embedding
- Projects can be shared or embedded in other websites. · trinket.strivemath.org, 12 Oct 2026
- Student accounts
- Schools can create student logins without requiring students’ real names or personal email addresses. · trinket.strivemath.org, 12 Oct 2026
- Support
- Users can contact Trinket by email or report bugs and request features through GitHub, and the site aims to respond within 24 hours. · trinket.strivemath.org, 12 Oct 2026
Where Trinket stands on Freedom251
- Coding Playgrounds#74 of 138