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
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.
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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.
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.
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.
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.
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.
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).
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.
Appsmith publishes its pricing — rare in this category. Four tiers:
Appsmith publishes list pricing on their website (Source: appsmith.com/pricing (checked 1 Sep 2026)).n'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.
This is the comparison every Indian buyer in this category eventually makes:
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.
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).
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