head to head
Retool vs AppSmith
AppSmith is the open source alternative to Retool — low-code internal tool builder. Here is the honest comparison.
Yes — AppSmith is a viable free replacement for Retool. AppSmith is open source under Apache-2.0, written in TypeScript, with 40,894 GitHub stars, 4,761 forks and 4,467 open issues; it was last pushed 5 hours ago. Retool costs from $10, while self-hosting AppSmith carries no licence fee — the trade is your operational time instead of a subscription. 4 other open source Retool alternatives are tracked here, led by ToolJet at 40,936 stars. AppSmith ranks #2 of 5 tracked open source Retool alternatives by stars. The tracked set, by adoption: ToolJet (40,936 stars), Refine (35,688 stars), Budibase (28,289 stars), Teable (21,800 stars). Replacement criteria on this page: 4 reasons to move to AppSmith and 3 reasons to stay on Retool.
choose AppSmith if
- Your Retool bill is growing with seats or usage
- You need your data in a format and server you control
- Your compliance posture requires auditing the code that touches sensitive data
- You have (or can rent) a server and basic Docker comfort
stick with Retool if
- You need the polished onboarding and support SLAs of a commercial vendor
- Your team has zero capacity to operate software, even self-hosted-simple
- You depend on a Retool integration ecosystem that the OSS alternatives have not replicated
Side by side
| AppSmith (open source) | Retool | |
|---|---|---|
| Price | Free (self-hosted) | $10-$50/user/month |
| License | Apache-2.0 | Proprietary |
| Source code | Public, auditable | Closed |
| Self-hosting | Yes — appsmithorg/appsmith | Cloud only |
| Data ownership | Your server, your format | Vendor's cloud |
| Community | ★ 41K · ⑂ 4.8K | — |
| Built with | TypeScript | — |
Why people look for a Retool alternative
About AppSmith
Appsmith is an open source, Apache 2.0 low code platform written primarily in TypeScript that lets teams build custom internal tools such as admin panels, dashboards, and CRUD applications on top of their own databases and APIs.
read the full AppSmith overview →
Other open source alternatives to Retool
last updated nightly · ranking method: github stars, live-tracked
Frequently asked questions
Is AppSmith a good replacement for Retool?
AppSmith is an open source alternative to Retool (Low-code internal tool builder). It is written in TypeScript and licensed under Apache-2.0, with 40,894 GitHub stars.
Is AppSmith free compared to Retool?
Yes. AppSmith is open source — there is no licence fee, and you can self-host it. Retool is typically a paid subscription, so the trade-off is licence cost against the operational work of running it yourself.
How do I migrate from Retool to AppSmith?
Migration effort depends on the data formats involved. Check AppSmith's documentation for import options, and compare the feature table above to confirm the capabilities you depend on are covered before switching.