linebender/parley

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Rich text layout library

Stars: 736
Forks: 120
Open beginner issues: 0
Indexed issues: 77
Avg merge: 1d 3h
Merged PRs (30d): 53

Dominant language: Rust
License: Apache-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue help wanted

Beginner friendly Everything

Open All

77 open issues indexed

Support `::first-letter` and `::first-line` pseudo styles Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 45/100

linebender/parley#809 · 1 comment · Opened Sep 10, 2026
Docs: document the coordinate space of GlyphRun::positioned_glyphs Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

linebender/parley#774 · Opened Sep 5, 2026
complex-scripts feature is off by default and undocumented — CJK line breaking silently broken Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

linebender/parley#773 · 1 comment · Opened Sep 5, 2026
How to create rainbow text? Open

question

Difficulty 5/5 Over a week Newbie friendliness 38/100

linebender/parley#767 · 2 comments · Opened Sep 3, 2026
Handle soft hyphens Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

linebender/parley#704 · 3 comments · Opened Jul 22, 2026
Turn non-breaking space (and other whitespace) into a space Open

Difficulty 3/5 1-2 days Newbie friendliness 66/100

linebender/parley#703 · Opened Jul 22, 2026
Renderability axis would be useful in font selection Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

linebender/parley#695 · 2 comments · Opened Jul 16, 2026
Cursor motion steps are codepoints, not grapheme clusters Open

Difficulty 5/5 Over a week Newbie friendliness 45/100

linebender/parley#694 · Opened Jul 16, 2026
Fontique: duplication and redundant re-scanning in load_fonts_from_paths Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

linebender/parley#683 · 1 comment · Opened Jul 10, 2026
Tests comparing "max_advance" and "by_length" line-breaking don't compare trailing whitespace Open

bug testing

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

linebender/parley#682 · Opened Jul 10, 2026
Fontique fails to find font for ❯ char (U+276F) on macOS Open

bug C-fontique

Difficulty 3/5 1-2 days Newbie friendliness 48/100

linebender/parley#678 · 1 comment · Opened Jul 9, 2026
Consider eliminating WGPU from the parley workspace Open

dependencies

Difficulty 3/5 1-2 days Newbie friendliness 55/100

linebender/parley#653 · 1 reaction · Opened Jun 24, 2026
Font Fallback not working for at least `汉` on Windows Open

bug C-fontique

Difficulty 4/5 3-5 days Newbie friendliness 48/100

linebender/parley#644 · 2 comments · Opened Jun 21, 2026
Unexpected line break with `TextWrapMode::NoWrap` for text beginning with a space Open

bug C-parley

Difficulty 3/5 1-2 days Newbie friendliness 68/100

linebender/parley#638 · Opened Jun 10, 2026
Eliminate direct dependencies on `glifo` in this repo Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

linebender/parley#633 · Opened May 31, 2026
Custom Font Collection Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

linebender/parley#622 · 1 comment · Opened May 15, 2026
Full support for the CSS `white-space` property Open

bug C-parley enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

linebender/parley#619 · 2 comments · Opened May 3, 2026
Editor: Adding a newline in RTL doesn't advance the cursor until another character is added too Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

linebender/parley#612 · 1 comment · 1 reaction · Opened Apr 22, 2026
Output effects from PlainEditorDriver actions (for undo, etc.) Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

linebender/parley#603 · 1 comment · 1 reaction · Opened Apr 11, 2026
Inconsistent baseline difference line-to-line for some fonts/sizes Open

Difficulty 3/5 1-2 days Newbie friendliness 50/100

linebender/parley#602 · 1 comment · 1 reaction · Opened Apr 11, 2026
static linking brotli Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

linebender/parley#580 · Opened Mar 20, 2026
Investigation: Subscript and Superscript Open

C-parley

Difficulty 5/5 Over a week Newbie friendliness 25/100

linebender/parley#577 · 3 comments · 1 reaction · Opened Mar 17, 2026
Document Parley Open

Difficulty 3/5 1-2 days Newbie friendliness 50/100

linebender/parley#574 · 2 comments · Opened Mar 12, 2026
Share more data between HarfRust and Parley Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

linebender/parley#561 · 1 comment · Opened Feb 20, 2026
Refine line breaking around graphemes and grapheme clusters Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

linebender/parley#555 · 2 comments · Opened Feb 17, 2026
Too much spacing between numerals Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

linebender/parley#544 · 1 comment · Opened Feb 11, 2026
Actually document what `Glyph` fields do Open

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

linebender/parley#530 · Opened Jan 30, 2026
Rich Text editor Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

linebender/parley#525 · 3 comments · 3 reactions · Opened Jan 26, 2026
Editor for large buffers of text Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

linebender/parley#524 · 1 comment · 1 reaction · Opened Jan 26, 2026
Ligatures should be disabled when letter spacing is enabled Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

linebender/parley#515 · 5 comments · Opened Jan 14, 2026
Support configuring preferred emoji presentation Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

linebender/parley#492 · 1 comment · Opened Dec 21, 2025
Re-shape after breaking when needed Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

linebender/parley#483 · 4 comments · 3 reactions · Opened Dec 11, 2025
Feature flag for WOFF/WOFF2 decoding Open

C-fontique

Difficulty 5/5 Over a week Newbie friendliness 20/100

linebender/parley#466 · Opened Nov 18, 2025
Shaper Driven Itemisation Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

linebender/parley#462 · 5 comments · 3 reactions · Opened Nov 13, 2025
Exposing the font family name to AccessKit Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

linebender/parley#441 · 2 comments · Opened Oct 28, 2025
Style incrementality Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

linebender/parley#432 · 4 comments · 2 reactions · Opened Oct 10, 2025
Consider removing `underline` and `strikethrough` styles Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

linebender/parley#399 · Opened Aug 11, 2025
Request: ability to set scale factor without recreating a layout Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

linebender/parley#398 · 2 comments · Opened Aug 8, 2025
Wrong selection rectangles for justified text Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

linebender/parley#396 · 3 comments · 1 reaction · Opened Aug 3, 2025
TreeBuilder-based layouts have invisible cursors when text is empty Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

linebender/parley#391 · 2 comments · Opened Jul 18, 2025
Tracking issue: Features for egui Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

linebender/parley#386 · 5 comments · 2 reactions · Opened Jul 1, 2025
fontique query matching algorithm Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

linebender/parley#379 · 1 comment · Opened Jun 9, 2025
fontique: generic families (Fedora/KDE) Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

linebender/parley#355 · 7 comments · Opened May 14, 2025
On Windows, no font is selected for fullwidth latin characters. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

linebender/parley#339 · 1 comment · Opened Apr 21, 2025
On Android, no font is selected for Japanese kana. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

linebender/parley#337 · 1 comment · Opened Apr 17, 2025
Ligatures at the start of words break word selection Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

linebender/parley#336 · 2 comments · Opened Apr 13, 2025
Editor: password input mode Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

linebender/parley#327 · 2 comments · 2 reactions · Opened Mar 30, 2025
Better support for custom line positioning Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

linebender/parley#325 · 4 comments · Opened Mar 30, 2025
Implement `size-adjust` property Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

linebender/parley#324 · 3 comments · Opened Mar 30, 2025
Parley's AccessKit integration is hard to integrate with some applications Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

linebender/parley#310 · 1 comment · Opened Mar 20, 2025

linebender/parley

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