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Appsmith

Bengaluru-built open-source low-code platform for internal tools — the most credible Apache-2.0 alternative to Retool, with 35,000+ GitHub stars and a free self-hosted tier with no per-user limits

Low-code / Internal Tools 4.4 / 5 (1 Rating) Free OSS / Business $15/user/mo Updated May 2026 šŸ‡®šŸ‡³ Made in Bengaluru

Quick Verdict

Appsmith is the leading open-source alternative to Retool for building internal tools, and one of the more credible India-built developer-tooling companies of the last five years. It was founded in 2019 in Bengaluru by Abhishek Nayak (CEO), Arpit Mohan (CTO), and Nikhil Nandagopal (Founder), raised $51.5M across Series A and B from Insight Partners (lead), Accel, and Canaan Partners, and has built one of the largest open-source low-code communities globally — 35,000+ GitHub stars on the Apache 2.0-licensed Community Edition. The product is a drag-and-drop UI builder wired to a JavaScript runtime that lets developers connect to any database, REST API or GraphQL endpoint, and ship internal tools — admin panels, dashboards, ops consoles, support tools — in hours instead of weeks. For Indian product and engineering teams the right framing is: Appsmith is the right pick when you value open-source self-hosting (free at any scale), when your developers want a JavaScript-friendly customisation layer, or when you specifically want to back an Indian-built dev-tooling company. Retool is the right pick when polished UX and the deepest integration ecosystem matter more than cost or sovereignty.

Open-source self-hosting
4.8
Developer experience (JS)
4.5
Drag-and-drop UI
4.2
Integration breadth
4.3
Polish vs Retool
3.9

What is Appsmith?

Appsmith is a low-code platform for building internal tools — admin dashboards, customer-support consoles, operational workflows, finance approvals, content-moderation queues, anything where a non-customer-facing application needs to be built quickly on top of internal databases and APIs. The product is structured around three primitives: widgets (drag-and-drop UI components — tables, forms, charts, dropdowns, modals, etc.), queries (typed connections to data sources — Postgres, MySQL, MongoDB, REST, GraphQL, Snowflake, BigQuery, S3, Salesforce, Hubspot, Stripe, dozens more), and JavaScript (a sandboxed JS runtime that lets you wire widgets to queries, transform data, run business logic, and customise behaviour). Build something simple in an afternoon; build a multi-page operational app in a few days.

The company was founded in 2019 in Bengaluru by Abhishek Nayak, Arpit Mohan, and Nikhil Nandagopal — all engineers with prior experience building internal tools at high-growth startups (Browserstack, Cuemath, Bidgely among them). The founding-team thesis was that internal-tool development was a $20B+ category being served either by ad-hoc, brittle, eng-team-built admin panels or by expensive proprietary tools like Retool — and that an open-source-first approach would win the developer mindshare and the long tail of mid-market customers who couldn't justify Retool's per-seat cost.

That bet has played out: Appsmith Community Edition has crossed 35,000+ GitHub stars, is one of the largest open-source low-code projects globally, and the company has raised ~$51.5M total across Seed, Series A and a $41M Series B led by Insight Partners (with Accel and Canaan as continuing investors). Reported revenue was around $10M ARR with a ~127-person team in 2023 (latest founder-supplied figures); the team and revenue have grown materially through 2024–2026 but newer figures aren't fully public. The cap-table includes secondary participation from existing investors in the post-Series B period.

For Indian product teams, three things distinguish Appsmith from the alternatives. First, the open-source posture is genuine: the Community Edition is full-featured (not crippled), Apache-2.0 licensed, and you can self-host it with unlimited users for zero licensing fees — a sharp contrast with Retool, which charges per-user even for self-hosted deployments. Second, the JavaScript-customisation surface is among the deepest in the category — you can write JS anywhere a value is needed, including for query transformations, widget styling, and event handlers. Third, the Bengaluru engineering team and large India-resident developer community mean that hiring Appsmith-skilled engineers, getting community help, and finding implementation partners is meaningfully easier in India than for US-headquartered competitors.

Capabilities

🧩 Drag-and-drop UI builder

50+ widgets out of the box — tables (with inline editing, sorting, filtering, pagination), forms, charts (line / bar / pie / Bubble), maps, modals, file pickers, JSON viewers, rich text, and more. Custom widgets supported via JS + React.

šŸ”Œ Data sources (50+ integrations)

Native connectors for Postgres, MySQL, MongoDB, MS SQL, Oracle, Snowflake, Redshift, BigQuery, DynamoDB, Redis, Elasticsearch, S3, REST APIs, GraphQL, Firestore, plus SaaS-tool integrations: Salesforce, Hubspot, Airtable, Google Sheets, SendGrid, Twilio, Stripe, Slack, Notion and more.

šŸ“œ JavaScript runtime

Sandboxed JS environment for transforming query results, wiring widget behaviour, building custom business logic, and re-using shared utilities across pages. Supports async/await, lodash, moment, and most common npm-style helpers out of the box.

šŸ” Git-based workflows

Native Git integration for version control, branch-based development, and CI/CD-friendly deployment. Commits, branches, PRs and merge conflicts are first-class — important for any team that wants to treat internal tools as code, not as a sandbox.

šŸ¢ Enterprise controls

SAML / OIDC SSO, SCIM-based user provisioning, role-based access controls (RBAC), audit logging, granular permission management, and configurable retention. Available on the Business and Enterprise plans (also includable in self-hosted Community deployments via the Enterprise add-on).

šŸ¤– AI / agent-builder (2024+)

Newer surface — Appsmith AI lets you embed LLM-powered features into internal tools (text generation, summarisation, classification) using your own OpenAI / Anthropic / open-model keys. Agent-builder workflows for ops automations are in active development through 2026.

Pricing & plans (2026)

Appsmith publishes its pricing — rare in this category. Four tiers:

  • Community (open-source) — free, Apache 2.0 licensed, self-hosted, unlimited users. Includes the full UI builder, all 50+ data-source integrations, JS runtime, and Git integration. The most generous open-source low-code offer in the market.
  • Free Cloud — Appsmith-hosted cloud version, capped at 5 users. Useful for evaluation; not a serious production option for any team beyond very small ones.
  • Business — $15 / user / month (~₹1,260/user/month at current rates). Adds SSO, audit logs, RBAC, and SCIM. Self-hosted only — no managed cloud at this tier.
  • Enterprise — starts at $2,500/month for up to 100 users (~₹2.1L/month). Adds managed hosting, SAML SSO, dedicated support, custom SLAs, advanced RBAC, and the AI add-on.

The page's previous "Cloud from ₹3,360/month" (~$40) figure didn't match any current Appsmith tier — likely an older Business-Cloud number that doesn't exist anymore. We've corrected the pricing scaffold. The single most important pricing fact for an Indian buyer: Appsmith Community Edition self-hosted is free for unlimited users, with no per-user fee, no usage cap, and no licensing review. That's an unusual deal in this category and is the dominant use case for Indian engineering teams.

Appsmith vs Retool — the practical comparison

This is the comparison every Indian buyer in this category eventually makes:

  • Cost: Appsmith Community is free for unlimited self-hosted users; Retool charges $10–$65 per user per month on its Team and Business plans, and self-hosted Retool also costs the per-user fee. For a 50-engineer team, the annual cost difference is roughly ₹0 (Appsmith) vs ₹40L–₹2Cr (Retool), depending on tier.
  • Polish: Retool's UI is more polished, the integration ecosystem is broader, and the docs / templates library is richer. Appsmith has closed the gap meaningfully but Retool still wins on the "out of the box, looks great immediately" dimension.
  • Open source: Appsmith is genuinely open-source (Apache 2.0, full-featured Community Edition). Retool is closed-source, even on self-hosted deployments.
  • Customisation: Appsmith's JS surface is broader — you can write JavaScript essentially anywhere. Retool has a more constrained but more guided model.
  • Hiring: In India, both have decent talent availability, but Appsmith-skilled engineers are easier to find at the engineer-near-Bengaluru level, partly because of the local engineering team and partly because Appsmith is taught at several Indian university clubs and bootcamps.

Default answer for most Indian buyers: start with Appsmith Community self-hosted; you'll know within 4–8 weeks whether you've outgrown it. If you have, pay for Appsmith Business or migrate to Retool — the data model is similar enough that migration is doable.

When Appsmith is the right call

  1. You want zero-cost open-source self-hosting at any scale — Appsmith Community is the most generous offer in the low-code category. No competitor matches it.
  2. You're an Indian engineering team that values the Bengaluru talent pool — easier to hire Appsmith-skilled engineers and get implementation help locally.
  3. You want full JavaScript customisation — Appsmith's JS surface is among the deepest in the category.
  4. You're building dozens of internal tools and per-user licensing would crush your budget — the unlimited-user self-hosted model becomes meaningful at scale.

Appsmith is the wrong call when: you specifically need the most polished out-of-the-box UX (use Retool); your engineering team would rather not maintain self-hosted infrastructure (use Retool Cloud or Appsmith Enterprise managed); or you want a no-code tool that pure operations / business teams can use without any developer involvement (consider Airtable or Bubble instead).

Pros & cons

āœ“ Pros

  • Genuinely open-source (Apache 2.0), 35,000+ GitHub stars
  • Free self-hosted with unlimited users — unbeatable on cost
  • Deep JavaScript customisation surface
  • 50+ native data-source integrations
  • Native Git integration for version control and CI/CD
  • Bengaluru engineering team — strong India hiring and community support
  • $51.5M raised, healthy financial backing (Insight Partners + Accel)

āœ— Cons

  • Less polished out-of-the-box UI than Retool
  • Free Cloud tier capped at 5 users — not a real production option
  • Business plan is self-hosted only (no managed cloud below Enterprise)
  • Smaller integration marketplace than Retool
  • Self-hosting requires real engineering effort — server, scaling, upgrades
  • Some advanced enterprise features (audit-log retention, advanced RBAC) only in Enterprise tier

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