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Chemical Drawing Atlas

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CyBy-Draw

A browser molecular structure editor with an Idris API and SVG export.

WebsiteManualGitHub

Open source. 16 of 65 checklist features confirmed.

Main canvas

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light mode

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dark mode

Default drawings

We could not finish testing this tool: No hosted editor URL was available. The Idris2/pack source build did not finish within ten minutes, so the editor could not be launched.

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Caffeine

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Paclitaxel

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Cholesterol in 3D

Facts

GitHub stars
10 stars on 6 Nov 2026
First commit
22 Aug 2024
Repository activity
178 commits, 6 contributors, last push 7 Oct 2026
Runs on
Browser
License
BSD 3-Clause license permits redistribution and modification.
Price
Free
Relies on
idris2-chem. Custom SVG canvas; chem is a separate same-author cheminformatics toolkit.
Draws with
SVG generated by a custom Idris renderer
Chemistry from
chem (Idris chemistry toolkit)
Interface
Idris async-dom and async-dom-extra HTML/DOM widgets
Main language
Idris
Other languages
JavaScript: Word add-in browser API bindings
Renderer
Original: CyBy Draw SVG renderer
Third-party licenses
BSD-2/3-Clause Idris libraries; MIT modern-normalize CSS.

Features

  • Tested by running it
  • Seen in the app
  • The manual says yes
  • Partly, with the reason shown
  • Not supported
  • Not established, which is not the same as no

Select a mark for its proof. A filled mark opens our screenshot, or the manual if the check left nothing to picture. A ring opens the manual.

Drawing structures

Reactions and mechanisms

Figures and layout

Chemistry intelligence

APIs and automation

Open the full pageManual