Directus vs Appwrite
Pick Directus for most self-hosting setups: it needs only 512 MB of RAM against Appwrite's 4 GB floor, rates a notch easier to deploy, and turns whatever SQL database you already have — or a fresh one — into a working REST/GraphQL API with an admin app on top. Appwrite is the heavier, broader platform: it bundles its own database (MongoDB by default in 1.9) and adds auth, storage, functions, messaging, and realtime out of the box, worth the extra RAM and setup difficulty if you want that full BaaS surface rather than just an API layer over your data.
Side by side
Directus and Appwrite both sit in the Backend & BaaS category and both bill themselves as a self-hosted alternative to Firebase, but they solve a different problem. Directus is a data platform: point it at a SQL database — one you already have, or a fresh one — and it instantly exposes REST and GraphQL APIs plus a customizable admin app on top. Appwrite is a full backend-as-a-service platform: auth, databases, storage, functions, messaging, and realtime, bundled together and installed as one Docker stack.
An API layer vs. a full platform
Directus is built on Node.js and TypeScript, licensed under MSCL-1.0, and rates a 2 out of 5 to deploy with a 512 MB RAM floor. Its job is specific: turn an existing or new SQL database into a headless CMS/backend, with instant REST and GraphQL APIs and a customizable admin app layered on top.
Appwrite is built on PHP with a MongoDB backend by default in the 1.9 installer (MariaDB optional; Appwrite 2.0 defaults to PostgreSQL), licensed under BSD-3-Clause, and rates a 3 out of 5 to deploy with a 4 GB RAM floor — eight times Directus's minimum. In exchange it packs in more: auth, databases, storage, functions, messaging, and realtime, all behind one console.
Database: bring-your-own vs. bundled
Directus's whole premise is layering over a database — existing or new — rather than owning one outright. Appwrite's official install provisions its own database — MongoDB by default in 1.9, or MariaDB if you pick it in the wizard (PostgreSQL is the default from 2.0) — as part of the stack, and that's the database Appwrite itself writes to.
Install: Compose file vs. installer wizard
Directus ships a docker-compose.yml: the official directus/directus
image alongside a Postgres database service, brought up with
docker compose up -d and reachable on port 8055.
Appwrite installs differently — an interactive Docker installer wizard, run
via docker run against the official appwrite/appwrite image, which walks
through setup on port 20080 and then brings up the full container stack,
with the console on port 80.
Which should you self-host?
Pick Directus if…
- You already have — or want to create — a SQL database and want an instant REST/GraphQL API and admin app over it, not a whole new backend platform.
- You want the lighter deploy: a 512 MB RAM floor and a 2 out of 5 difficulty rating.
- A docker-compose.yml with an official image is all the install you want to deal with.
Pick Appwrite if…
- You want auth, storage, functions, messaging, and realtime bundled together, not just an API layer over a database.
- You're fine running a dedicated database backend as part of the stack.
- You have the 4 GB of RAM to spare and are fine with a 3 out of 5 difficulty deploy.
Running either on a VPS
Directus's 512 MB floor and 2 out of 5 difficulty make it the cheaper, simpler box to run when an API-and-admin layer over a database is genuinely what you need. Appwrite's 4 GB floor is a harder requirement, so budget for a mid-tier VPS if you want the wider auth/functions/messaging platform it bundles in. Step-by-step install guides for Directus and Appwrite are linked below — and if you're weighing Appwrite against a lighter BaaS option too, see our PocketBase vs Appwrite comparison.
Common questions
Can Directus run on a database I already have?
Yes — it's designed to layer over an existing or new SQL database, turning it into a headless CMS/backend with instant REST and GraphQL APIs. Appwrite's official install provisions its own database (MongoDB by default in 1.9, MariaDB optional; PostgreSQL from 2.0) as part of the stack, and that's the database Appwrite itself writes to.
Which needs less RAM to self-host?
Directus by a wide margin — a 512 MB floor versus Appwrite's 4 GB, an eightfold difference.
Which is easier to deploy?
Directus rates a 2 out of 5 in our catalog versus Appwrite's 3 out of 5. Directus installs from a docker-compose.yml running the official image alongside a Postgres backend; Appwrite installs through an interactive Docker installer wizard that also uses an official image.
Does Appwrite cover more out of the box than Directus?
By description, yes — Appwrite lists auth, databases, storage, functions, messaging, and realtime as built in. Directus's description centers on instant REST/GraphQL APIs and a customizable admin app layered over a database, a narrower, more focused feature set by design.
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Other comparisons with these apps
A single Go binary vs. an all-in-one Docker platform.
SQL-native and ecosystem-rich vs. all-in-one and easier to stand up.
Postgres you run yourself, or Google's managed NoSQL platform with no self-hosted edition.