Issues

• README module CDN example points to a missing file

  opentypejs/opentype.js#878 · Filter by author dajiaohuang opened on Sep 18, 2026

• Windows npm test fails when generating recursive CFF fixture

  opentypejs/opentype.js#877 · Filter by author dajiaohuang opened on Sep 18, 2026

• Please publish a release including the toPathData() NaN fix (9c0a65f)

  opentypejs/opentype.js#876 · Filter by author hryanjones opened on Sep 10, 2026

• Lookup type 6 format 2 is not supported yet

  opentypejs/opentype.js#874 · Filter by author schuetzm opened on Sep 2, 2026

• Chaining substitution throws on nested Single (type 1, format 1) lookups

  opentypejs/opentype.js#860 · Filter by author fifzteen opened on Jul 23, 2026

• svgImages are uninitialized on first draw() call

  opentypejs/opentype.js#852 · Filter by author mootari opened on May 26, 2026
  1

• toPathData() returns NaN for valid path commands with certain fontSize values

  opentypejs/opentype.js#851 · Filter by author langmacko opened on May 26, 2026
  1

• Closure Compiler types need an update and inclusion in package.

  devenhancementNeeds Investigation
  Task

  opentypejs/opentype.js#847 · Filter by author ILOVEPIE opened on May 12, 2026 · 2.0.1
  

• Export issues?

  opentypejs/opentype.js#836 · Filter by author z3dev opened on May 4, 2026
  9

• I currently have a font file. The tool failed to interpret it. Is there a planned time point for supporting unsupported font files or how to solve it

  opentypejs/opentype.js#813 · Filter by author yi-xiaobai opened on Aug 28, 2025
  1

• Report an error when parsing NotoColorEmoji.ttf font

  opentypejs/opentype.js#810 · Filter by author XC0703 opened on Aug 20, 2025
  2

• Built-in TypeScript types

  opentypejs/opentype.js#809 · Filter by author bergwerf opened on Jul 29, 2025
  3

• Kerning

  opentypejs/opentype.js#807 · Filter by author benoitwimart opened on Jul 7, 2025
  3

• Character path missing commands at smaller sizes

  opentypejs/opentype.js#804 · Filter by author gingerchris opened on May 20, 2025
  5

• Non latin glyphs not rendered

  opentypejs/opentype.js#803 · Filter by author ShaMan123 opened on May 16, 2025
  1

• SVG fonts depend upon browser-only APIs

  opentypejs/opentype.js#802 · Filter by author gingerchris opened on May 6, 2025
  8

• Not supporting for some feature tags-"calt" (Contextual Alternates)

  opentypejs/opentype.js#801 · Filter by author tanvinhnguyen2504 opened on Apr 11, 2025
  1

• path with commands from glyph.getPath does not contain the closing Z command.

  opentypejs/opentype.js#799 · Filter by author udatny opened on Mar 26, 2025
  2

• Possible Issue in parse.mjs::getFixed()

  opentypejs/opentype.js#790 · Filter by author indiscripts opened on Feb 24, 2025

• Saving variable font results in static font

  enhancementwriting support
  opentypejs/opentype.js#788 · Filter by author Materuilist opened on Jan 28, 2025
  2

• Variable font rendering: Diacritics based on composites are misaligned to base glyph

  bug
  opentypejs/opentype.js#783 · Filter by author herrstrietzel opened on Jan 14, 2025

• Delete glyph

  opentypejs/opentype.js#782 · Filter by author qxygene1 opened on Jan 8, 2025
  1

• Cannot read properties of undefined (reading 'getTransform')

  opentypejs/opentype.js#765 · Filter by author ahaoboy opened on Sep 25, 2024

• Issues with Rendering Variable Fonts in opentype.js 2.0.0

  bug
  opentypejs/opentype.js#754 · Filter by author MMaturax opened on Aug 20, 2024 · 2.0.1

• lowMemory option causes glyphs to be skipped when writing font (with toArrayBuffer)

  bugNeeds Investigation
  opentypejs/opentype.js#742 · Filter by author Balearica opened on Jul 9, 2024