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Chemical Drawing Atlas

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

ChemSemaThis feature in other tools

Shapes, brackets and curves in ChemSema

Bracket and circle tools beside the drawing canvas.

Bracket and circle tools beside the drawing canvas.
What we checked
Editable shapes plus brackets or free curves.
Result
Yes, according to the manual Yes, according to the manual
Version we tested
Web build 8e6f995 (2026-09-…, on macOS 27.0.1 arm64
Manual
github.com

Open the full pageManual