Skip to content
Chemical Drawing Atlas

This website is biased toward ReShiki, because its maintainer also maintains ReShiki. Please be careful.

Ketcherails (ketcher-rails)

A Rails component for embedding a 2D chemical structure editor with templates and server chemistry services.

WebsiteManualGitHub

Open source. 32 of 65 checklist features confirmed.

Main canvas

Ketcherails (ketcher-rails) main canvas, light mode
light mode

No dark mode

dark mode

Default drawings

caffeine as drawn by Ketcherails (ketcher-rails) with default settings

Caffeine

paclitaxel as drawn by Ketcherails (ketcher-rails) with default settings

Paclitaxel

No 3D view

Cholesterol in 3D

Facts

GitHub stars
3 stars on 6 Nov 2026
First commit
18 May 2016
Repository activity
164 commits, 9 contributors, last push 6 Aug 2024
Latest version
v0.1.12
Version we tested
0.1.12
Runs on
Browser
License
Wrapper declares GPLv3; bundled Ketcher code carries AGPLv3 notices.
Price
Free
Relies on
Ketcher, Open Babel, InChI. Modified Ketcher 1.1 canvas adds polymer tools and coordination-bond rendering.
Draws with
Raphaël SVG/VML in the browser; Open Babel SVG and Inkscape template PNG conversion.
Chemistry from
Ketcher 1.1-beta JavaScript chemistry core; Open Babel; inchi-gem in current source.
Interface
Ruby on Rails with Prototype.js, jQuery UI and Bootstrap.
Main language
JavaScript
Other languages
Ruby: Rails engine and server chemistry
Renderer
Borrowed: Ketcher 1.1 Raphaël renderer
Third-party licenses
Includes AGPL-3.0-only Ketcher; GPL-2.0-only Open Babel (GPL-3.0 wrapper); LGPL-2.1 inchi-gem; InChI 1.06 under legacy InChI-Trust 1.0 weak copyleft; MIT libraries/fonts.
Download
8.2 MB
Installed
693 MB

In use

Screenshots from our test of this version.

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

Chemistry intelligence

Embedding and extension

Open the full pageManual