Can I vibecode Eraser?

KINDA · weekend project
price variesbuild time multi-daycategory 📐 diagramsreplaced by 0 people

The visible technical diagrams loop is buildable, but a credible replacement needs more than the first screen. Eraser earns its keep through interaction polish, collaboration, so expect a weekend or multi-day build and a narrower personal scope.

the prompt
Build a deliberately narrow personal substitute for Eraser, not a full clone.
Use exactly this stack: React + TypeScript + Vite + IndexedDB.
Primary job: Build a browser-based technical diagrams editor with drag, resize, connect, keyboard shortcuts, autosave, and SVG or PNG export.
Start from an empty folder and create the complete working project.
Make the default mode single-user and private.
Store user data locally unless the core job requires the declared self-hosted database.
Do not add analytics, telemetry, ads, or third-party accounts.
Put every secret and external credential in .env and provide .env.example.
Use realistic sample data that is clearly labelled and easy to delete.
Implement the smallest polished interface that completes the core loop end to end.
Include clear empty, loading, validation, success, and failure states.
Add import and export so the user is not trapped in the app.
Use accessible keyboard navigation, labels, focus states, and sensible contrast.
Validate untrusted input and never log secrets or private file contents.
Deliberately exclude these paid-product advantages: high-fidelity import and export; presentation and enterprise controls; multiplayer cursors and comments.
Do not fake integrations, network effects, proprietary data, model quality, compliance, or security claims.
Where an external API is optional, keep the app useful without it and explain the degraded mode.
Write focused unit tests for the data model and the most important workflow.
Add one end-to-end smoke test that proves the core loop works.
Create a README with setup, permissions, architecture, data location, backup, and limitations.
Add scripts for install, development, test, build, and a production-style local run.
Run the tests and build before finishing, then fix errors rather than merely describing them.

$ open in your agent (prompt prefilled, you press enter) or copy it raw · this prompt is generated from the build plan · improve it via PR

why people still pay

Eraser: The shapes are easy; customers pay for low-friction editing, reliable exports, collaboration, and a canvas that never fights them.

what you lose

xhigh-fidelity import and export

xpresentation and enterprise controls

xmultiplayer cursors and comments

xlarge template libraries

share on X ↗"I just replaced Eraser with one prompt"
the escape hatch

Don't feel like building it? These folks already made it free.

HedgeDocCollaborative Markdown documents with Mermaid diagrams, revisions, and reveal.js presentations; no free-form whiteboard, but the engineering-doc job is real.7.4kaug 2026open source

no votes, no pay-to-list · just what's real

the numbers

Eraser pricing

planmonthlyannual (per mo)what you get
free$0/workspace$0/workspace3 files; 3 AI diagrams/month; 7-day version history; unlimited guests
starter$20/user$15/userUnlimited files; 40 AI diagrams/member/month; 90-day version history; 20 custom icons; usage-based API
business$60/user$45/userUnlimited files; 250 AI diagrams/member/month; unlimited version history; 100 custom icons; SSO; usage-based API
enterprisecustomUnlimited files, AI diagrams, version history and custom icons

free tier3 files; 3 AI diagrams/month; 7-day version history; unlimited guests

billingmonthly + annual

hidden costsGuests are free, but members are paid seats. API use is separately usage-based; the public pricing page does not publish the unit rate.

verified 2026-08-12 · source ↗

questions
Can I vibecode Eraser?

Kinda. The core of Eraser is buildable in a weekend with the prompt on this page, but there are real gaps: high-fidelity import and export, presentation and enterprise controls. Read the honest list above before committing.

How much does Eraser cost?

Eraser's pricing is usage-based or varies by plan · The official pricing URL is recorded, but a stable current amount was not safely recoverable in this pass. Do not publish a number until rechecked..

What do I lose by replacing Eraser?

Honestly: high-fidelity import and export; presentation and enterprise controls; multiplayer cursors and comments; large template libraries. If any of those are load-bearing for you, keep paying.

Is there an open-source alternative to Eraser?

Yes: HedgeDoc (Collaborative Markdown documents with Mermaid diagrams, revisions, and reveal.js presentations; no free-form whiteboard, but the engineering-doc job is real.) The prompt is for when you want it exactly your way.

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