ToolJet Cloud alternatives: 5 free & open-source picks
Curated, verified, and actually free. No trials, no crippled tiers. Star counts and last-activity dates checked by hand, not scraped and forgotten.
Internal apps, forms, automations, and portals in one box; much closer to Knack than its developer branding suggests.
licenseGPL-3.0
runsyour server
installDocker image or Docker Compose; Kubernetes is also supported
enginesModel-agnostic; the agent builder supports bring-your-own AI provider credentials
dataBuilt-in app data and app definitions are stored in CouchDB, files in MinIO/S3-compatible object storage, and connected external data remains in its source system
the catch vs ToolJet CloudBudibase can replace the CRUD interface but gives up ToolJet Cloud's managed hosting and makes the user responsible for Docker, upgrades, backups, and availability.
setupRequires Docker and persistent storage; production use also means owning upgrades, TLS, backups, and database/network access
facts verified 2026-08-10
A self-hosted internal-tool canvas with a broad widget set; less polished, but not a toy.
licenseAGPL-3.0
runsyour server
installSingle Docker image for evaluation, or Docker Compose/Helm with separate MongoDB and Redis services for production
enginesConnectors include OpenAI and other APIs; the operator supplies provider credentials
dataUsers, app definitions, data-source configuration, and assets live in the deployment's MongoDB and mounted lowcoder-stacks volume; Redis holds sessions/state; external business data stays in its source
the catch vs ToolJet CloudLowcoder is capable but noticeably less polished and documented, and self-hosting shifts all production operations away from ToolJet Cloud.
setupDocker is required; a production deployment needs MongoDB, Redis, secrets, backups, TLS, and more care than the all-in-one demo image
facts verified 2026-08-10
Five people can build and run database-backed internal apps in the hosted product without paying.
licenseApache-2.0
runstheir cloud
installHosted signup for Appsmith Cloud Free
enginesAppsmith's AI/agent features use Appsmith-managed AI services; exact model availability is product-controlled rather than a local backend
dataApp definitions, users, and secrets live in Appsmith Cloud; connected business data remains in the source database/API, while query results pass through Appsmith
setup✓ installs clean
the catch vs ToolJet CloudAppsmith Free is less generous for a tool with many end users and its hosted component and permission model differs enough to require rebuilding the app.
facts verified 2026-08-10
The paid app's real builder, database, mobile apps, and 500 workflow runs for up to five people at $0.
licenseproprietary, free
runstheir cloud
installHosted signup in Retool Cloud
enginesRetool-managed AI models and agents; Free includes pooled AI credits and limited agent hours, while bring-your-own model keys are plan-dependent
dataApp definitions, Retool Database rows, and Retool file storage live in Retool Cloud; connected source data remains in the user's databases/APIs, although query results transit Retool
setup✓ installs clean
the catch vs ToolJet CloudRetool Free's tiny team allowance makes it unsuitable for the many-viewer internal tools that ToolJet's free and paid plans are designed to serve.
facts verified 2026-08-10
The same cloud product is free for two builders, 50 end users, two apps, five database tables, and unlimited external data sources.
licenseAGPL-3.0
runstheir cloud
installHosted signup for ToolJet Cloud Free
enginesToolJet AI uses vendor-hosted AI services and plan credits; bring-your-own LLM keys are an Enterprise add-on
dataApp metadata, ToolJet Database tables, secrets, and files live in ToolJet Cloud; connected source records remain in their external database/API
setup✓ installs clean
the catch vs ToolJet CloudIt is the same service with caps on builders, apps, database tables, AI, and advanced governance, so a paid deployment may not fit without redesign.
facts verified 2026-08-10
last updated 2026-08-10 · no votes, no pay-to-list · just what's real
| tool | license | running it | platforms | stars | active |
|---|---|---|---|---|---|
| Budibase | GPL-3.0 | docker to self-host | web, self-hosted | 27,902 | 2026-07 |
| Lowcoder | AGPL-3.0 | self-host, real ops | web, self-hosted | 1,600 | 2026-07 |
| Appsmith Free | Apache-2.0 | they host it | web | — | — |
| Retool Free | proprietary, free | they host it | web, ios, android | — | — |
| ToolJet Free | AGPL-3.0 | they host it | web | — | — |
People still pay for ToolJet Cloud because the builder is only useful when its runtime, connectors, permissions, and deployments remain boring for years. The recurring cost buys schema migration, auth, permissions, connector drift, queues, deployments, backups, and auditability, not just the visible interface.
Is there a free alternative to ToolJet Cloud?
Yes: Budibase, Lowcoder, Appsmith Free and 2 more. Every tool on this page is either open source or genuinely free to use long-term: no trials, no crippled tiers.
Should I just build my own ToolJet Cloud?
Our verdict is PARCIAL. The core loop is buildable, but a dependable replacement becomes a real weekend or multi-day project. For ToolJet Cloud, build and deploy a constrained internal data tool for a small team. The hard boundary is connectors, runtime, permissions, enterprise controls, and hosted operations, plus connectors, runtime reliability, and governance. If you'd rather build, the exact one-shot prompt is free at puedovibecodearlo.app/tooljet-cloud.
