mathiasbynens/punycode.js

A robust Punycode converter that fully complies to RFC 3492 and RFC 5891.

Stars: 1.7k
Forks: 170
Open beginner issues: 0
Indexed issues: 38

Dominant language: JavaScript
License: MIT
Last GitHub push: Oct 30, 2023
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

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38 open issues indexed

Incorrect converting of 👁 & 👁️ Open

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

mathiasbynens/punycode.js#145 · Opened Nov 27, 2025
Consider adopting npm trusted publishing Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

mathiasbynens/punycode.js#144 · Opened Sep 28, 2025
DeprecationWarning: The `punycode` module is deprecated. Please use a userland alternative instead. (Use `node --trace-deprecation ...` to show where the warning was created) Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mathiasbynens/punycode.js#141 · 1 comment · 3 reactions · Opened Dec 12, 2024
Value Open

Difficulty 5/5 Over a week Newbie friendliness 1/100

mathiasbynens/punycode.js#140 · 1 comment · 1 reaction · Opened Oct 4, 2024
Update README to instruct how to alias the native one (due to Node 22 annoying warning) Open

Difficulty 1/5 Under an hour Newbie friendliness 48/100

mathiasbynens/punycode.js#137 · 6 comments · 17 reactions · Opened Sep 4, 2024
Importing in node 21 Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mathiasbynens/punycode.js#132 · 10 comments · Opened Nov 2, 2023
Suggest using `punycode.js` npm package Open

Difficulty 1/5 Under an hour Newbie friendliness 48/100

mathiasbynens/punycode.js#122 · 2 comments · Opened Dec 15, 2022
proposed v3 maintenance Open

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

mathiasbynens/punycode.js#119 · 1 comment · 4 reactions · Opened Sep 29, 2022
punycode.encode('♡.com') should return 'xn--c6h.com' but instead it returns '.com-ku3b' Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mathiasbynens/punycode.js#117 · 7 comments · Opened Mar 20, 2022
Any plans to support es6 import/export? Open

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

mathiasbynens/punycode.js#116 · 1 comment · 7 reactions · Opened Dec 8, 2021
ZWJ support Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mathiasbynens/punycode.js#114 · 9 comments · 3 reactions · Opened Jul 27, 2021
The prepublish script changes the export signature, mismatch to @types/punycode Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

mathiasbynens/punycode.js#112 · 1 comment · 1 reaction · Opened Oct 13, 2020
punycode.toUnicode not working Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

mathiasbynens/punycode.js#109 · 3 comments · 1 reaction · Opened Apr 22, 2020
case-insensitive issue Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mathiasbynens/punycode.js#105 · Opened Apr 7, 2020
Upgrade mocha dependency Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

mathiasbynens/punycode.js#101 · 2 comments · 2 reactions · Opened Mar 16, 2020
Name collision Open

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

mathiasbynens/punycode.js#97 · 3 comments · Opened Sep 11, 2019
Doesn't support RFC 5895 Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mathiasbynens/punycode.js#96 · 2 comments · Opened Aug 26, 2019
Add IDN validation Open

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

mathiasbynens/punycode.js#95 · 1 comment · Opened Aug 21, 2019
About base64decode() Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

mathiasbynens/punycode.js#94 · Opened Aug 6, 2019
wrong mapDomain split Open

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

mathiasbynens/punycode.js#91 · Opened Mar 14, 2019
Add UMD definitions Open

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

mathiasbynens/punycode.js#89 · 1 comment · 3 reactions · Opened Nov 29, 2018
punycode(1.3.2) have AMD id('punycode'), which isn't comfortable when use requireJS. Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

mathiasbynens/punycode.js#88 · Opened Aug 31, 2018
missing `es5` version breaks IE11 Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mathiasbynens/punycode.js#86 · 14 comments · 18 reactions · Opened Jul 21, 2018
toUnicode fails for malformed input Open

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

mathiasbynens/punycode.js#85 · 5 reactions · Opened May 30, 2018
Domains that break the script Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mathiasbynens/punycode.js#80 · 1 comment · Opened Apr 5, 2018
Naming collision when installing punycode via npm Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

mathiasbynens/punycode.js#79 · 12 comments · Opened Mar 13, 2018
get error punycode.js:533 Uncaught TypeError: __webpack_require__(...) is not a function when upgrade react from v15 to v16 Open

Difficulty 3/5 1-2 days Newbie friendliness 10/100

mathiasbynens/punycode.js#78 · Opened Feb 28, 2018
can't decode link that half punycode Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mathiasbynens/punycode.js#75 · 3 reactions · Opened Feb 2, 2018
What about ASCII characters not in [a-zA-Z0-9-] ? Open

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

mathiasbynens/punycode.js#73 · 4 comments · Opened Jan 26, 2018
webjar latest version Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

mathiasbynens/punycode.js#71 · Opened Nov 30, 2017
Support full URLs for punycode.toUnicode and punycode.toASCII Open

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

mathiasbynens/punycode.js#70 · 3 comments · Opened Nov 5, 2017
`toASCII` returns incorrect result Open

bug

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

mathiasbynens/punycode.js#66 · 5 comments · 3 reactions · Opened Apr 2, 2017
Improve V8-specific performance Open

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

mathiasbynens/punycode.js#49 · 1 reaction · Opened Jun 23, 2016
wrong conversion Open

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

mathiasbynens/punycode.js#46 · 3 comments · Opened Apr 11, 2016
Indicate nameprep support Open

Difficulty 1/5 Under an hour Newbie friendliness 45/100

mathiasbynens/punycode.js#40 · 2 comments · 2 reactions · Opened Nov 5, 2015
Overflow check in encoder differs from RFC3492? Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

mathiasbynens/punycode.js#38 · 5 comments · Opened Nov 4, 2015
Using punycode.js as a named module does not work. Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mathiasbynens/punycode.js#25 · 2 comments · Opened Aug 18, 2014
Match browser implementations (e.g. `１`) Open

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

mathiasbynens/punycode.js#12 · 6 comments · Opened Nov 5, 2012

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