ToolJet

ToolJet is an open-source, AI-native low-code platform for building internal tools, dashboards, business apps, workflows and AI agents — and it is one of the most credible self-hostable alternatives to Retool and Appsmith in 2026. We rate it 84/100 — the right pick for engineering teams that want a Retool-like builder without the per-end-user pricing or the closed-source lock-in.

What is ToolJet?

ToolJet was founded by Navaneeth P. K. in early 2021 and the project went public on GitHub on March 30, 2021. It has since grown into a mature platform with 37,800+ GitHub stars, 5,000+ forks and 968 open issues on github.com/ToolJet/ToolJet, and ships under the AGPL-3.0 license. The community edition is fully self-hostable via Docker, Kubernetes or a one-click Render/Railway deploy; the managed product lives at tooljet.com and a separate AI-first SKU at tooljet.ai.

The pitch is straightforward. Retool charges per end user and Appsmith Business sits behind a Business plan; ToolJet charges only per builder, lets you keep the data on your own infrastructure forever, and bundled an AI app generator into the core product before most rivals shipped one. In early 2026, the project officially repositioned itself from "open-source low-code" to "AI-native enterprise app generation" — a move documented in their own blog post about ToolJet at the start of 2026.

Key Features of ToolJet

• AI app generator: describe an internal app in plain English and ToolJet AI produces the schema, UI and queries against your connected data sources. The 2025 experiment matured into a first-class flow in 2026.
• 80+ data sources out of the box: PostgreSQL, MongoDB, MySQL, Snowflake, BigQuery, REST, GraphQL, Stripe, Slack, S3, OpenAI, Anthropic and more — including a built-in ToolJet Database for prototyping without external infra.
• 60+ responsive UI components: tables, charts, forms, kanban, file uploaders, maps, rich text — enough to ship most internal tools without writing a single component.
• JavaScript and Python: custom code runs in both languages, server-side, with shared variables across queries — useful for the long tail of edge cases that no-code can't cover.
• Workflows: a visual workflow builder for scheduled jobs, multi-step automations and AI agent orchestration that promoted from beta to a core capability in late 2025.
• Enterprise security: AES-256-GCM encryption, OIDC/SAML SSO, granular RBAC, audit logs, multi-environment promotion, Git-backed version control and an air-gapped on-prem mode for regulated industries.

What Users Say About ToolJet

Sentiment is broadly positive but specific. On Reddit's r/selfhosted and r/opensource, the most upvoted threads praise ToolJet's data-source breadth and the fact that the self-hosted edition is the real product, not a stripped loss-leader. A widely shared Medium benchmark by Nigel Tape that compared Retool, Appsmith, Drona and ToolJet found ToolJet had the fastest table rendering under load and was the only platform that did not crash on a deliberately heavy form. On G2, ToolJet's average user rating sits comfortably above Appsmith on "ease of use" and "ease of doing business with."

The recurring complaints are also consistent. The AGPL-3.0 license scares legal teams at some larger companies who would rather see Apache 2.0; the AI app generator's first version (early 2025) produced apps that often needed substantial rework; and self-hosters periodically report Postgres connection-pool exhaustion when running ToolJet alongside heavy Node workloads. The UI, while modern, still feels less polished than Retool's in long sessions.

ToolJet Pricing

ToolJet's commercial twist in 2025 was to drop per-end-user pricing entirely and charge only by builder. The community edition remains free and self-hostable forever.

Plan	Price	Key Limits
Community (self-hosted)	$0 forever	Unlimited apps, unlimited end users, all core features, AGPL-3.0
Cloud Free	$0/month	2 builders, 50 end users, 2 apps
Business	$79 per builder/month	5 apps, 100 end users, SSO, audit logs, 24×5 support
Enterprise	Custom (contact sales)	Unlimited apps, on-prem, air-gapped, RBAC, dedicated support

Who Should Use ToolJet?

Best for: engineering and ops teams at startups and mid-market companies who need to ship internal CRUD tools, admin panels and ops dashboards quickly, who are comfortable self-hosting, and who want their pricing to scale with builders rather than seats.

Not ideal for: consumer-facing product surfaces, enterprises that mandate Apache-2.0-or-permissive licenses, or tiny teams with no engineering capacity at all — Retool's hosted offering or a true no-code tool like Glide will be a softer landing.

Pros and Cons

Pros:

• Per-builder pricing — predictable as user counts grow, unlike Retool's per-seat model
• Self-hosted community edition is the full product, not a hobble-ware tier
• Independent benchmarks place ToolJet's table rendering ahead of Appsmith and DronaHQ under load
• Mature SSO, RBAC, audit logs and air-gapped deployment for regulated industries
• JavaScript and Python both supported for custom logic — Appsmith remains JS-only

Cons:

• AGPL-3.0 license is a real blocker for some enterprise legal teams
• The AI app generator still produces drafts that need engineering polish
• UI feels slightly less refined than Retool's during multi-hour build sessions
• Postgres connection-pool sizing is a known operational gotcha for self-hosters

Alternatives to ToolJet

The obvious alternatives are Retool for teams that want the most polished commercial builder and accept per-user pricing, Appsmith for an Apache-licensed open-source rival, and Budibase for a no-code-leaning self-hostable competitor. For workflow-heavy use cases, n8n and Activepieces are strong complements rather than direct replacements.

Verdict: Is ToolJet Worth It?

If you are an engineer-led team that wants to stop paying per end user for internal tools, ToolJet is the obvious 2026 pick — and the AI app generator is genuinely useful even if first drafts need polish. If your legal team will not touch AGPL or you need a managed-only experience with a Retool-grade UI, look elsewhere. We rate ToolJet 84/100: very good, with the main rough edges sitting in licensing and the still-maturing AI workflow rather than the core builder, which is excellent.

Frequently Asked Questions

Is ToolJet free?

Yes. ToolJet's community edition is free and self-hostable forever under AGPL-3.0, with unlimited apps and end users. The Cloud Free plan supports 2 builders, 50 end users and 2 apps; paid Business plans start at $79 per builder/month.

Is ToolJet open source?

Yes — ToolJet is licensed under AGPL-3.0 and the source is hosted at github.com/ToolJet/ToolJet, with 37,800+ stars and 5,000+ forks as of May 2026.

Can ToolJet be self-hosted?

Yes. ToolJet ships official Docker, Docker Compose and Kubernetes Helm charts, plus one-click deploys for Render, Railway and AWS. An air-gapped on-prem mode is available on the Enterprise plan.

How does ToolJet compare to Retool?

ToolJet is open-source and charges per builder; Retool is closed-source and charges per end user. Retool's UI is more polished and its component library is broader, but ToolJet wins on price predictability, self-hostability and AI-native app generation.

Does ToolJet support AI agents?

Yes. ToolJet exposes first-class connectors for OpenAI, Anthropic, Google and Mistral, and the Workflows engine can orchestrate multi-step agent runs over your connected data sources.