Zeltro › Zeltro compared to AI app builders and local dev tools
How Zeltro compares
Where the code runs, whose model builds it, and what you hold afterwards — Zeltro next to Lovable, Bolt, Base44, Emergent, Dyad, DDEV and Lando, scored on facts rather than opinions.
Comparison charts are usually written to make one product win. This one is scored on things you can go and verify: who supplies the model, where the app runs, what lands on your machine, and whether you get a live URL at the end.
Zeltro loses a column below. That is deliberate — a chart that only flatters its author is not worth reading.
The chart#
| Tool | Builds from a prompt | Whose model | Runs on | Languages | Live URL | What you hold |
|---|---|---|---|---|---|---|
| Zeltro | Yes | Yours — 5 agents, any endpoint, or local | Your machine | PHP, Python, Node | No | Everything, from the first command |
| Dyad | Yes | Yours (bring your own key) | Your machine | JavaScript | No | Full code |
| Lovable | Yes | Theirs, bundled | Their cloud | JavaScript | Yes | Vite/React via GitHub sync or download |
| Bolt.new | Yes | Theirs, bundled | Browser / their cloud | JavaScript | Yes | Zip of a standard Vite project |
| Emergent | Yes | Theirs, bundled | Their cloud, or self-host | JS + Python | Yes | Full codebase; repo in your GitHub on paid tiers |
| Base44 | Yes | Theirs, bundled | Their servers | JavaScript | Yes | Front end on paid plans; backend stays on their SDK |
| Relume | Design only | Theirs | Their cloud | — | No | React + Tailwind components, or HTML |
| DDEV | No | — | Your machine | PHP, Node | No | Everything, per project |
| Lando | No | — | Your machine | Many | No | Everything, per project |
Two columns carry most of the meaning.
Whose model. Hosted builders bundle the model into their pricing, so your bill scales with how much you prompt them. Zeltro and Dyad both let you bring your own, which means an existing Claude or ChatGPT subscription does the work, or a cheap OpenRouter model does, or Ollama does it for nothing.
What you hold. This is where the differences get real, and where they are easy to check yourself before committing to anything.
Where the code lives#
The phrase "you own your code" is used by nearly everyone in this category and means noticeably different things.
Zeltro and Dyad — the project is a directory on your disk from the first command. There is nothing to export because nothing was ever held anywhere else.
Bolt.new and Lovable — a genuine export. Bolt gives you a zip; Lovable syncs
to a GitHub repo you own or lets you download the codebase on a paid plan. Both
produce standard Vite/React projects that run with npm install && npm run dev.
Emergent — exports a full codebase (React or Next, Expo for mobile, FastAPI or Node behind it, MongoDB), and on the Standard plan and up the repository lives in your own GitHub account.
Base44 — the one to read carefully. Code export is a paid-plan feature, and what exports is the front end; the backend continues to call Base44's SDK against their servers. Running the download on your own machine gives you screens that load and buttons that do not, until you rebuild the backend somewhere else.
None of this makes Base44 a bad product — it is a hosted platform and it is upfront that hosting is what it does. It matters only if your plan is to leave one day. Check the export terms of anything before you build something you care about on it.
Where Zeltro is the wrong answer#
You want a live URL tonight. Zeltro has no hosting and no deploy step. It
gives you http://your-project/ on your own machine. Lovable, Bolt, Base44 and
Emergent all hand you a working public link, and if that is the goal, use one.
You do not want a terminal. Zeltro needs Docker, and Windows needs WSL2. There is a desktop GUI, but the thing underneath is containers.
You want one small React page. A Bolt export runs with npm install && npm run dev and that is genuinely enough. Zeltro starts paying off at the second
project, or the first database.
Where it is the right one#
You build in PHP or Python. Laravel, Django, FastAPI, WordPress and October CMS are first-class. Most of this category is JavaScript-only.
You have a lot of projects. One MariaDB, one Postgres, one Redis, one Mongo shared across all of them, each reachable at its own hostname. Ten projects do not mean ten database containers or ten ports to remember.
You want to choose the model. Including a local one, if the code should not leave the building.
You already got burned by lock-in. If you are reading this after trying to get a project out of something, the structural answer is a tool where the export problem cannot arise.
Questions
Is Zeltro an AI app builder or a local development environment?
Both, and they reinforce each other. zeltro create "<idea>" scaffolds a project
from plain English and hands it to an AI agent — that is the app-builder half.
The environment half is what makes it work: the agent gets a container with the
runtime, database and networking already set up, so it writes your app instead of
inventing infrastructure.
How does it compare to Dyad?
Dyad is the closest thing in spirit — local, open source, bring your own key, and considerably more established. The practical differences are language and scope: Dyad is TypeScript and builds JavaScript apps, while Zeltro covers PHP, Python and Node; and Dyad is focused on building an app, while Zeltro also manages every other project on the machine and can install 200+ ready-made open-source apps.
Do I need to pay for an AI subscription?
You need some model, but you have options. Claude, Codex and Gemini sign in with accounts you may already pay for. Qwen Code or Aider through OpenRouter costs a fraction of a frontier model. Aider pointed at Ollama runs entirely on your own hardware for nothing.
Can I move a project out of Zeltro later?
There is nothing to move out of. A Zeltro project is an ordinary directory with an ordinary framework in it — a Laravel app is just a Laravel app. Delete Zeltro and the code is still there and still runs anywhere that framework runs.
Does Zeltro host my site?
No. It is a local development environment; deployment is a separate concern and a separate tool. If you need hosting, that is what a host like a VPS, a platform, or one of the hosted builders above is for.
Checked 2026-08-22. Other products change often — if something here is out of date, tell us and it gets fixed.