No install. No build step. No excuses.
Build the Web.
Write HTML, CSS & JS and see it render live across five synced viewports. Test accessibility, simulate vision conditions, and deploy to Netlify or Vercel — all from one tab, with no setup.
No install. No build step. No excuses.
Write HTML, CSS & JS and see it render live across five synced viewports. Test accessibility, simulate vision conditions, and deploy to Netlify or Vercel — all from one tab, with no setup.
No installs, no build step. Write HTML, CSS & JS, test accessibility, check Baseline browser support, simulate vision conditions, and deploy — all from one tab.
Connect your own AI — Claude, GPT or Gemini. Todo tracking, web search, and one-click rewind checkpoints — all with full project context. Completely optional.
Your keyRun WCAG audits, check colour contrast, and test keyboard navigation — all built into the editor. Fix issues with one click via AI.
InclusiveKnow what's safe to ship. The Baseline tool scans your HTML, CSS & JS and flags any feature that isn't yet Widely available across browsers — with per-browser support versions, powered by web-features and the official Baseline data.
BaselineSee your design through different eyes — colour blindness, glaucoma, cataracts, and more. Plus sensory filters for autism, dyslexia, and attention differences. Filters apply across every viewport at once, so you can compare side by side.
EmpathyCompare up to five viewports side by side — iPhone, iPad, Pixel, Galaxy, desktop. Clicks, scrolls, and edits sync across every frame, so you can spot responsive bugs the moment they appear.
5-up syncCode together in real time with a shared link. Fork any public project, propose changes back with merge requests — social coding built in.
Real-timeDrop a DESIGN.md file in your project — blnq compiles your palette, type, spacing and radii into CSS custom properties, injects them into the preview, and keeps the AI on-brand.
DESIGN.mdPush to GitHub, deploy to Netlify or Vercel — all from inside the editor. No CLI needed.
DeployNo frameworks. No build step. No config. Just open a tab and build — with tools designed specifically for front-end prototyping that other editors simply don't have.
Start from scratch or describe your idea and let AI give you a head start.