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Tech riderRev. 22 Sept 2026

Calque

Ch 225.2of 24 AI Screenshot-to-Code Tools
  1. 1Runs onLinux, Mac, self-hosted, Windows
  2. 2CostsNot stated by the maker
  3. 3Input sourcesPNG, JPEG screenshots
  4. 4Framework supportPlain HTML and CSS custom properties
3 lines stated Written from the maker's own pages: github.com
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The Calque homepage

Overview

Calque is ranked #22 of 24 in AI screenshot-to-code tools on Specifiction. It runs on Linux, macOS, Self-hosted, Windows.

Compared on AI screenshot-to-code tools

Input sources
PNG, JPEG screenshotsgithub.com
Framework support
Plain HTML and CSS custom propertiesgithub.com

Facts

Purpose
Calque turns a website screenshot into working HTML and CSS by measuring pixels rather than asking a vision model to interpret the image.github.com · 4 Oct 2026
Output
It can write a self-contained HTML file or a JSON specification of its measurements.github.com · 4 Oct 2026
Design measurements
It extracts design tokens including colors, type scale, weights, spacing, container width, gutters, and corner radii.github.com · 4 Oct 2026
Layout and images
It finds sections, columns, cards, buttons, alignment, and reading order, and can crop photographs from the screenshot as assets.github.com · 4 Oct 2026
Quality check
Its check command renders the rebuilt page in an installed Chrome-family browser and compares it with the screenshot pixel by pixel.github.com · 4 Oct 2026
Claude integration
Calque ships as a Claude skill that supplies measurements for Claude to use when writing project code.github.com · 4 Oct 2026
Other tools
The documented workflow uses Tesseract for OCR and Docker as an optional way to run Calque in a container.github.com · 4 Oct 2026
Privacy and operation
The maker says Calque makes no model call or API request, and that after its OCR data is cached it works offline; the Docker build preloads that data.github.com · 4 Oct 2026
Runtime
The maker says Calque runs in about a second per page and its tests run without network access.github.com · 4 Oct 2026
Limits
It processes one screenshot rather than a whole site, cannot identify the exact typeface, and uses cropped screenshot images rather than recovering original photographs.github.com · 4 Oct 2026
Known weak cases
The maker reports lower reconstruction matches for photograph-heavy pages and identifies dark pages with large glows or gradients behind text as its worst case.github.com · 4 Oct 2026
License
The repository describes Calque as MIT-licensed and says it can be hosted, forked, or sold.github.com · 4 Oct 2026
Maker
The repository says Calque is part of Openware, whose GitHub profile describes its work as self-hostable replacements for subscription software.github.com · 4 Oct 2026

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Where it ranks on Specifiction

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Sources