FREE FOR PERSONAL USE · USE THE AI YOU ALREADY HAVE · YOUR APP STAYS YOURS
Outgrew Lovable, Bolt or Replit? The credits run out, your app only lives on their platform, and PHP or Python isn’t on the menu. Zeltro does the same job on your own computer: describe what you want, and the Claude, ChatGPT or Google AI plan you already have builds it. The code is a normal folder that’s yours to keep.
Zeltro is one of the most mechanically honest and friction‑reducing dev tools to emerge in the “vibe coding” era.
What makes it interesting isn’t necessarily the AI itself. It’s the infrastructure underneath AI development.
As a developer and self‑hosting tool, it’s strong and differentiated.
Zeltro.ai looks like a smart, practical response to the limits of browser‑based AI app builders.
WHERE ARE YOU STARTING FROM?
New to building?
You don’t need to know what a framework is. Say what you want in plain English, Zeltro suggests a sensible way to build it, and the AI you already pay for writes the app on your computer while you watch it come together.
Coming from Lovable, Bolt or Replit?
Your app comes over in a few minutes and runs on your own computer. Zeltro offers a one-click GitHub connect when you first open it, and you can try the move on our key. The code and the data are yours, and you keep building it with your own AI instead of buying credits.
Step by step: Lovable · Bolt · Replit · Emergent · v0 · Base44
Developer?
21 frameworks from Laravel and Django to Next.js and FastAPI. One shared set of databases for every project, as many projects as your machine can hold, and projects on other machines over SSH. Plus a command line for all of it.
OUTGREW LOVABLE OR BOLT?
Most people find the browser builders brilliant for the first weekend, then hit one of two walls. Zeltro is built for getting past both.
Every message costs a credit, failed fixes included, and unused credits expire. Here the AI is a flat plan you already pay for, or a key at the provider’s own price.
Tried Claude Code on its own and lost an hour to Node versions, databases and ports? Zeltro has all of that ready, so your AI starts on the app, not the setup.
Bring a Lovable, Bolt, Replit, v0 or Base44 project with you. It runs on your own computer, and the code is yours to keep. Switch to Zeltro.
NO AI NEEDED
Not everything needs building. Zeltro’s app library has 214 ready-made, open-source apps: file sync, automations, wikis, CRMs, inventory, photo libraries, analytics. Pick one, give it a name, and a couple of minutes later it’s running on your computer, database and all.
No AI, no tokens and no setup. Your own Dropbox, your own Zapier, your own asset tracker, without a monthly bill for any of them.
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Use the Claude Code, Codex, Antigravity, Qwen Code, Aider, OpenCode or Hermes Agent you already have, or any API key, including OpenRouter or a local model. Give each project its own.
Projects are plain folders and git repos on your own machines. There is no platform in the middle, and your code, prompts and keys are never sent to us.
There is nothing to sign up for. Businesses buy a lifetime license, once. The command line tool is open source.
Start, stop, edit and hand projects to your AI from one sidebar, on this computer or on any machine you can reach over SSH.
TOUR
Real screenshots of the Zeltro app, with made-up projects. Click any one to see it full size.
CREATE WITH AI
Describe your idea in plain English. Zeltro reads it and suggests how to build it: a ready-made app if one already does the job, or a framework and a database if it needs building from scratch, each with a one-line reason. Pick one and your AI takes it from there.
New to all this? You don’t need to know Laravel from Django. Already have a favourite? Choose it and move on.
THE MESSAGE BOX
Every AI session gets a proper text box underneath it. Draft a long, multi-line request, rearrange it, attach files or dictate, then send it with Ctrl+Enter. No more fighting a terminal’s line editor to fix a typo in paragraph three.
Each project keeps its own session running in the background. Click another project to switch, and come back to find your agent exactly where you left it.
PROJECTS THAT TALK
Every project sits on one private network, so your storefront can call your inventory API directly, with no ports or addresses to juggle.
The AI agents can talk to each other too. When one project changes its API, its agent can tell the agents that depend on it, and they update their own code. One project or all of them, and you see every message in the app.
AI PROFILES
Set up as many profiles as you like: Claude Code, Codex, Antigravity, Qwen Code, Aider, OpenCode or Hermes Agent, each with its own model and, if you want, its own API key. Projects use your default, or the profile you pick for them in their Edit window.
Working on a client’s project? Give it a profile with the client’s API key, so the tokens land on their bill instead of yours. Use a low-cost model through OpenRouter for small jobs, or a local model that never leaves your machine.
DICTATION
Press the microphone and say what you want changed. Your words land in the message box, where you can tidy them up before sending. It is the fastest way to give an AI a long, detailed request.
Speech recognition runs on your own computer. No audio is uploaded, there is no extra service to pay for, and once its model has downloaded it works offline. Pick the accuracy you want, and English or any of dozens of other languages.
YOUR AI CAN ASK
When the agent reaches a real decision, like which payment provider to use, it puts the question in the Zeltro window with the choices as buttons. Click one and it carries on. No scrolling back through a wall of terminal text to find what it asked.
Need an API key? It asks for it in a private box, and Zeltro saves the key straight into the project’s settings file. The agent is only told that it was saved, so the key never goes through the chat.
And you don’t have to sit and watch it work. When a session finishes, its project gets a dot in the sidebar. When one needs you, it gets a pop-up too, so you can get on with something else. What the AI tells you along the way, like a login it set up, is kept in its Notices tab, beside the terminal. None of it costs any AI tokens.
Most of these are a separate product or a weekend of wiring. In Zeltro they are one app, on your own machine.
Every project with a running light and its addresses. Start, stop, edit, hand to your AI, hide or trash it in one click, and filter or sort the list however you like.
Wikis, CRMs, analytics, status pages, file sync and plenty more, each set up and connected to a database for you. Search, name it, install.
One MariaDB, Postgres, MongoDB, Redis and Memcached serve every project instead of a copy each, plus phpMyAdmin, MinIO and Meilisearch when you want them.
Zeltro, Retro, Matrix, Dark and Light, each with its own animated background, and all of them go still if you prefer reduced motion. Scale the interface and the terminal text to taste.
English, Spanish, Portuguese, French, German, Simplified Chinese and Japanese. Your AI agents are told to reply in your language too.
Everything the app does, its command line tool can do too, if you ever want to script it. The command line is open source under MIT.
REMOTE MACHINES
Add a cloud server, such as an AWS EC2 instance or a DigitalOcean droplet, a machine in the office, or a Raspberry Pi. Zeltro connects to it over SSH, and its projects show up in your list next to your own, with a badge saying where each one lives.
Start and stop them, run AI sessions on them and manage their services, all from the same window. The other machine just needs Zeltro installed; then add it under Settings → Remotes.
BRING YOUR OWN KEY
Zeltro doesn’t sell AI. Plug in the API key or AI plan you already have and pay the provider directly, with nothing added on top, or run models for free with Ollama. No markup, no credits, no subscription to us. That’s where the savings come from.
OpenAI, Anthropic, Google, OpenRouter, DeepSeek: billed by the provider, per token, at its own price.
Claude Pro or Max, ChatGPT Plus, Google AI Pro. Zeltro runs the coding agents those plans include.
Ollama or LM Studio on your own machine. No key, no account and no bill, just electricity.
WHAT YOU SAVE
Most AI app builders run on Claude, GPT and Gemini, and resell them to you as credits. Zeltro connects your agent straight to the model, on the plan or key you already pay for.
A freelancer with three live client apps
About 600 AI requests a month, hosting and domains included. Zeltro itself is $0. “Your own AI” is a $20 AI plan plus hosting, which you’d pay with any tool.
We measured it. An AI agent took four minutes and $0.22 to install Plausible Analytics from scratch. From Zeltro's app library it takes one click and no AI at all.
The whole list, so nothing surprises you halfway through setup.
Linux, or a Mac with macOS 12 or later (Apple Silicon or Intel). Windows works too, and is still in beta.
A Claude, ChatGPT or Google AI plan you already have, or an API key from any provider, or a free model running on your own computer with Ollama. Haven’t got one yet? You can try Zeltro on our key first: no account, no card, enough for a first project, one per computer, while it lasts.
Your projects run in WSL, the Linux that comes built into Windows. The installer asks for administrator permission once to turn it on, the computer may need one restart, and then Zeltro sets up the rest itself. Some PCs also need virtualization switched on in the BIOS first. Read the Windows notes.
No account, no credit card and no subscription. The app installs Docker and everything else it needs by itself.
Install the Zeltro app and it sets up everything else it needs, Docker included, so there is nothing to learn first. Pick your platform.
Install it with sudo apt install ./zeltro-gui_amd64.deb, then open Zeltro. It sets up the rest itself: Docker and the command line tool, asking for your password once. It also adds Zeltro’s signed package repository, so updates arrive with your normal system updates.
Install it with sudo dnf install ./zeltro-gui.x86_64.rpm, then open Zeltro. It sets up the rest itself: Docker and the command line tool, asking for your password once. It also adds Zeltro’s signed package repository, so updates arrive with your normal system updates.
Install it with sudo pacman -U zeltro-gui-x86_64.pkg.tar.zst, then open Zeltro and it sets up the rest itself. On Arch the package doesn’t add an update source, so to get updates with pacman -Syu, install with this command instead, which adds Zeltro’s signed repository:
curl -fsSL https://dist.canebaycomputers.com/zeltro/arch | bashAfter setup, other terminal windows need one log out and back in before docker works without sudo. The Zeltro app works straight away.
Prefer one command? curl -fsSL https://dist.canebaycomputers.com/zeltro/ubuntu | bash does it all from a terminal.
curl -fsSL https://dist.canebaycomputers.com/zeltro/mac | bashPaste it into Terminal. It sets up everything Zeltro needs (Homebrew and Docker Desktop, if you don’t have them), then installs the app for Apple Silicon or Intel, macOS 12 or later. Already use Homebrew? brew install --cask canebaycomputers/zeltro/zeltro does the same. Updates come from Updates in the app, or brew upgrade --cask zeltro.
Windows may say it “protected your PC” because the installer isn’t code-signed yet: choose More info → Run anyway. The installer asks for administrator permission once, to turn on WSL (the Linux that comes with Windows), and the computer may need one restart. Then open Zeltro and it sets up the rest itself: Ubuntu in WSL and Zeltro’s engine, with the progress on screen.
Would rather run your projects on another machine? Add a Linux computer, a Mac or a server under Settings → Remotes instead.
Prefer the terminal? The command line tool installs on its own too — see Zeltro for the terminal.
THE FIRST TIME YOU OPEN IT
Every screen you’ll see on the way to your first project, in order. Nothing here needs a terminal.
Pick your platform above and open the app. On Windows, the installer asks for administrator permission once, to turn on WSL (the Linux that comes with Windows), and the computer may need one restart.
It starts on your computer’s language. Change it if you like.
Read the license terms and accept them.
Free for personal use. A business enters its commercial key or buys one, and that can wait until later.
Your first project is on us. One click sets up Claude through Zeltro’s key, with no account, no card and no key of your own. It’s a try‑out, not a free plan: enough for a first project, one per computer, while it lasts.
Or choose “No thanks, I’ll use my own subscription or key”
You’ll see these two screens instead (and also if the try‑out isn’t available):
One button. GitHub opens in your browser and Zeltro copies a one-time code for you: paste it and click Authorize. GitHub calls it “GitHub CLI”, the tool Zeltro uses for your repositories. It’s the easy way to bring in a project from Lovable, Bolt, v0 or anywhere else. You can skip it.
It sets up WSL, Ubuntu and Zeltro’s engine, with the progress on screen. If GitHub couldn’t be connected before this, it’s offered again right after.
Click Add Project and pick one of six cards: Describe what you want (Create with AI), Import from GitHub, Start from a framework, Install a ready-made app, Just a folder, or Add an existing folder. Bringing an app over
Running it yourself is the point — but if you would rather not, I will do it for you.
Tell me what you want to build, or what you have already built, and I will take it the rest of the way: set the project up properly, put it on a server with your own domain and a certificate, and keep it running and backed up. You get a working site and someone to call when something breaks — no dashboards to learn, no platform to sign up for.
Every project is different, so there is no price list. Tell me what you have in mind and I will tell you what it costs. If it is a bad fit I will say so.
Cane Bay Computers & Mobile · Summerville, South Carolina · Mon–Fri 10–6, Sat 10–5
FOR DEVELOPERS
Zeltro does four things, and they reinforce each other.
One Postgres, one Redis, one MariaDB, used by every project on the machine. Run ten projects, you've still got one of each. Every project sits on the same private network, so a Laravel app and a FastAPI service can share a database without wiring any networks by hand.
Pick Grafana from the app library and it's fully configured, running, and reachable at its own address in under two minutes. Or start a fresh Laravel, FastAPI, Django or Express project from Add Project. No env-var spelunking. No "why isn't db:5432 resolving" debugging. No copy-pasting docker-compose files from someone's gist.
Zeltro's command surface is shaped around AI-driven development. Your agent gets a stable platform — shared services, one network, three known runtime images — so it focuses on the actual app instead of reinventing the runtime. Works with Claude Code, Codex, Antigravity, Qwen Code, Aider, OpenCode and Hermes Agent.
React, Vue, Next.js, Nuxt, Vite, SvelteKit and Astro run as natively as
Laravel, Django, FastAPI and the databases behind them. Zeltro is the
infrastructure layer underneath: it runs the Docker containers, gives every
project its own address, and keeps an AGENTS.md in each one so
your agent starts every session knowing the project.
WHY ZELTRO
You can. It'll just do it slowly, expensively, and a little differently every time. Zeltro is the ready-made workshop underneath, with or without an agent driving it.
Zeltro isn't competing with your AI agent. It's the workshop your agent works in — tested tools, shared resources, predictable setup — so the agent (and you) skip rebuilding the workshop every time.
Everything the app does is also a zeltro command, which suits scripts, servers and AI agents. You never need it to use the app.
The app is free for personal use, and every feature works for everyone. If your business uses it, it needs a lifetime commercial license, paid once. It covers everyone in the business and every future version, and turns off the app’s license reminder.
Every one of these installs from the app library in a couple of clicks, wired to the shared databases. Click one to see its terminal command too.