Budibase vs Appsmith

Budibase and Appsmith both build internal apps in a browser and both ship as a single all-in-one Docker image, so the install page for each is a compose file with one service. The question that separates them is where your data lives. Budibase comes with a database of its own and treats external sources as connections; Appsmith has no database of its own and is a screen over the sources you already run. That one difference drives the licence, the idle footprint and who each is for.

Own data store vs. UI over your data

Budibase describes Budibase DB as "our native datasource": tables created from the Data section of the Workspace, with relationship columns that link tables, formula columns written in handlebars or JavaScript, CSV or JSON import "as a new Budibase table", and attachments up to 20 MB per file. Our catalog entry notes that store is CouchDB, bundled inside the image. External sources are a second tier: the docs carry pages for PostgreSQL, MySQL/MariaDB, MS SQL Server, MongoDB, Oracle, Snowflake, DynamoDB, Elasticsearch, Redis, S3, Google Sheets, CouchDB and a REST API source. The pitch is forms and admin panels over tables you own, plus connections out.

Appsmith starts from the other end. Its datasource reference lists REST and GraphQL APIs, PostgreSQL, MongoDB, MySQL, Microsoft SQL Server, Snowflake, Redis, S3 and more, a long list of SaaS integrations, and OpenAI, Anthropic and Google AI, with the fallback that "if there isn't a supported datasource, you can connect using the REST API". There is no built-in table editor; if the data has no home yet, you give it one first. Logic goes in {{ }} bindings and JS Objects, "a collection of JavaScript functions and variables", running in a context that "does not have access to the global window object".

So: if the tool you want is "a form that writes to a table that does not exist yet", Budibase gives you the table. If it is "a dashboard over the production Postgres", Appsmith is built for exactly that and carries nothing extra.

Licences

Appsmith's repository is Apache-2.0 with no separately licensed directory. The Docker page defaults to the appsmith-ee image, which "installs the Commercial edition"; our snippet swaps in appsmith-ce as the page describes. The paid features live on the Commercial edition's plans: the pricing page puts custom roles, audit logs and workflows under Business and SAML/OIDC SSO under Enterprise.

Budibase licenses per package. The root LICENSE says "You can consider Budibase to be GPLv3 licensed overall", that "Paid features should live in /packages/pro" under the Business Source License, and that "Packages that become part of a generated Budibase application should therefore use MPL 2.0", so the apps you build are not themselves GPL. It also notes that "Budibase ships with Structured Query Server, by The Neighbourhoodie Software GmbH" under its own licence file. The pricing page lists two self-host tiers: Open source, with "Unlimited users" and SSO, and Enterprise, which adds audit logs, "Backups and restore", environment variables, "Custom branding" and SCIM.

Neither licence stops a company from running the tool internally. Apache is the simpler one to explain to a compliance reviewer; Budibase's three-licence monorepo is workable but needs the explanation.

Footprint and setup

Both are one image, and that is where the resemblance ends.

Appsmith's Docker page says the default setup "runs MongoDB, Redis, and PostgreSQL inside the Appsmith container" and to "Plan for at least 8 GB of RAM on the host". Nothing has to be generated: one volume at ./stacks, a boot that "can take up to 5 minutes", and TLS handled by the container itself once a custom domain is set, because "Appsmith uses Caddy as its internal reverse proxy".

Budibase's Docker page recommends "2 core and 6GB of RAM" and lists JWT_SECRET, MINIO_ACCESS_KEY, MINIO_SECRET_KEY, REDIS_PASSWORD, COUCHDB_USER, COUCHDB_PASSWORD and INTERNAL_API_KEY; these "will automatically be pre-seeded with UUIDs if no environment variable is set" and written to a .env inside the /data volume. Our snippet generates them up front so they are in your hands rather than the container's. The image bundles CouchDB, Redis, MinIO and nginx, and with CUSTOM_DOMAIN set, Budibase "will automatically attempt to create an SSL certificate and use HTTPS for this domain", which only works once the domain already points at the box.

In our install check (GCP e2-standard-2, Ubuntu 26.04, October 2026), Budibase idled at ~2.8 GB of RAM and ~4.5 GB of disk; Appsmith idled at ~1.1 GB of RAM and ~4.1 GB of disk. Budibase asks for the smaller host on paper and used more than twice the memory at rest, with a document database, an object store and a proxy all running inside the image. We rate both 2 out of 5 to deploy: one service each, with Budibase's extra step being the six secrets.

Which to choose

Choose Budibase if the tool needs tables of its own: forms, approvals and admin panels where the data has no other home, with external SQL and REST sources attached when it does. Give it 6 GB and expect close to 3 GB in use before anyone logs in.

Choose Appsmith if your data already lives in a database or behind an API and you want screens over it with the least to run and the least to explain: one container, one volume, Apache-2.0 throughout, and TLS from the container. Give it the 8 GB host upstream asks for; it idled well under that.

Moving between them

Leaving Appsmith costs you screens, not data, because the data was never in it. Leaving Budibase means exporting Budibase DB tables first, since they live in the bundled CouchDB inside the image; plan that export before the move.

Running Budibase or Appsmith on a VPS

Both installs are verified on Ubuntu 26.04; the pinned compose files are on the Budibase and Appsmith pages. Each can issue its own certificate once a domain points at it; otherwise put a reverse proxy in front, because both serve plain HTTP on port 80 inside the container. For a builder that adds workflows and a built-in database without Budibase's weight, see Appsmith vs ToolJet; for one that starts from the data model, see NocoBase. The whole field is on the low-code internal tools hub.