Bolt vs ellul
Prompt-to-app, or agent's runtime.
Bolt is a strong prompt-to-running-app product on top of StackBlitz's WebContainer tech. Ellul is the persistent computer an engineer's AI agent lives on. They serve different users. Here's where each one wins.
Updated
The fundamental difference
Bolt is opinionated about the runtime (browser-based via WebContainer) and the workflow (prompt → app → preview). Ellul is the runtime under your agent: you bring the editor, the agent, the model, the deploy target. The two products serve adjacent users; we list the comparison because both show up under 'AI codes my app' searches.
Where Bolt is strong
Bolt's WebContainer-based runtime gives it a unique 'browser preview = real Node.js' experience. For prototypes, MVPs, and demos by people who don't want to set up a local environment, Bolt's prompt-to-running-app speed is hard to match, and the lineage with StackBlitz means the dev environment is well-engineered.
Where ellul is stronger
Engineering on a real codebase: your agent, your model, your tools, your repo. Long-running tasks, parallel agents, real credentials gated by a passkey, persistent workstation between sessions. Ellul is the runtime; you bring whichever agent CLI suits the job.
Feature comparison
| Capability | Bolt | ellul | Advantage |
|---|---|---|---|
| Target user | Prototyper, designer-engineer, indie builder | Professional engineer with an agent | |
| Output | A live app in a Bolt workspace, exportable to GitHub | Diffs, PRs, deployed code in your repo | |
| Codebase ownership | Bolt-hosted; GitHub export available | Yours: git, your repo, your CI | |
| Bring-your-own-agent | Bolt's own model + tooling | Claude Code, Cursor, Codex, OpenCode | |
| Bring-your-own-model | Hidden | Yes (BYOK) | |
| Persistent workstation | Per-project Bolt workspace | Yes (branches, deps, MCP servers persist) | |
| Real-credential operations | Limited; designed around hosted demos | Passkey-gated, server-side vault | |
| Parallel agents | Multiple Bolt sessions, no peering | Multiple workstations, read-only peering | |
| In-browser execution | WebContainer (real Node in browser); unique strength | Server-side terminal in browser | |
| Time to first running app (prototyper) | Minutes (the headline pitch) | Hours (engineer-shaped) | |
| Editor experience | Built-in editor + preview pane | Pair with your IDE locally; or browser file browser | |
| Best fit | Prototypes, MVPs, demos, indie launches | Production engineering with an agent |
Pricing
| Tier | Bolt | ellul |
|---|---|---|
| Entry | Free or Pro $25/mo | $20/mo Hobby |
| Pro / Teams | Teams $30/member/mo | $50/mo Pro |
| Self-hosting | Hosted on Bolt; GitHub export | Your repo, deploy anywhere |
Verdict
Bolt for prototypes; Ellul for the agent inside your real codebase.
Bolt is the right tool for someone who wants a running app from a prompt and is fine with Bolt's runtime. Ellul is the right tool for an engineer with an AI agent and a real codebase, who wants the agent on a persistent workstation with real-credential gating. Most engineers we talk to who try both use Bolt for v0 demos and Ellul for shipping the actual product.
When to use each
Use Bolt when
- You want a running web app from a prompt, in the browser, in minutes.
- Your project is a prototype, demo, or indie MVP, not a production codebase.
- You're happy hosting on Bolt or exporting to GitHub later.
- WebContainer's in-browser runtime matters for your demo's distribution.
Use ellul when
- You're an engineer running AI agents on real codebases.
- You want your code in your git repo, deployed where you choose.
- Your agent needs real-credential operations gated by passkey.
- You expect to run agents in parallel or unattended.
- You want flat-rate pricing rather than usage credits.
Common questions
Is Bolt a coding agent like Claude Code?
Different shape. Bolt is a prompt-to-app product; the agent is implicit. Claude Code, Cursor, and Codex are coding agents you keep using across projects, with their own CLI and model contracts. Ellul is the runtime under those coding agents.
Can I export from Bolt to Ellul?
Yes. Bolt supports GitHub export. Once you have the repo, you can clone it onto an Ellul workstation and continue with Cursor, Claude Code, or your preferred agent. The 'graduate from prompt-builder to engineer-with-agent' path is a common one.
What's WebContainer and why does it matter?
StackBlitz built WebContainer, a Node.js runtime that runs inside the browser via WebAssembly. It's a real strength for Bolt: 'preview' is actual code execution in the browser, not a server round-trip. It does not generalize to all environments (no Docker, limited native modules) but for the apps Bolt targets, it's a uniquely fast loop.
Bolt vs Lovable vs v0 vs Base44: are they all the same?
All in the same prompt-to-app builder category, with different polish and different model stacks. Bolt's WebContainer runtime is its differentiator; Lovable's React quality is its; v0's design fidelity is its; Base44's full-stack scope is its. Ellul is structurally orthogonal to all four.
What if my Bolt prototype graduates into a real product?
Export to GitHub, clone onto an Ellul workstation, point your preferred agent CLI at the repo. The agent now lives on a persistent server, can run unattended, has passkey-gated production access, and works alongside other agents you spin up.
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Move your agent off your laptop.
Hobby is $20/month. Pro is $50/month. Bring any agent: Claude Code, Codex, Cursor, OpenCode.
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