Issues

• shortbench includes material compiler-dependent harness overhead

  bug (unverified)
  simdutf/simdutf#1042 · Filter by author vtlmks opened on Sep 22, 2026
  1

• support loongson LASX runtime dispatching on LLVM

  simdutf/simdutf#946 · Filter by author lemire opened on Mar 12, 2026

• add short inputs optimizations

  good first issuehelp wanted
  Feature

  simdutf/simdutf#925 · Filter by author lemire opened on Jan 22, 2026
  18

• Make immediate versions of autodetect_encoding and detect_encodings (constexpr)

  good first issuehelp wanted
  simdutf/simdutf#891 · Filter by author lemire opened on Jan 2, 2026
  2

• Provide compile-time functions for (almost) everything

  simdutf/simdutf#865 · Filter by author lemire opened on Nov 25, 2025
  1

  

• Add Loongson versions of add UTF16 to UTF8 length with replacement #853

  help wanted
  simdutf/simdutf#854 · Filter by author lemire opened on Nov 14, 2025

• Add RVV versions of add UTF16 to UTF8 length with replacement

  help wanted
  simdutf/simdutf#853 · Filter by author lemire opened on Nov 14, 2025

• Optimize decode_up_to_bad_char=true in base64_to_binary_safe

  simdutf/simdutf#847 · Filter by author lemire opened on Nov 2, 2025

• Optimize atomic copies

  simdutf/simdutf#775 · Filter by author lemire opened on May 1, 2025
  4

• Benchmarks without tests

  simdutf/simdutf#732 · Filter by author WojciechMula opened on Apr 1, 2025
  2

• [question] Rust port

  simdutf/simdutf#715 · Filter by author WojciechMula opened on Mar 15, 2025
  2

• add utf16_length_from_utf8_with_replacement

  simdutf/simdutf#689 · Filter by author lemire opened on Feb 24, 2025
  5

• Investigate using __vectorcall under Windows #689

  simdutf/simdutf#673 · Filter by author lemire opened on Feb 10, 2025

• add multithreading for large inputs?

  simdutf/simdutf#640 · Filter by author ronag opened on Jan 7, 2025
  3

• binary_to_hex / hex_to_binary

  enhancement
  simdutf/simdutf#565 · Filter by author ronag opened on Sep 16, 2024
  9

• Add NFD, NFC, NFKD and NFKC normalization

  simdutf/simdutf#553 · Filter by author bungle opened on Aug 28, 2024
  11

• implement efficient one-pass 'detect encodings' functions

  Algorithmic/Performancegood first issuehelp wanted
  simdutf/simdutf#528 · Filter by author lemire opened on Aug 16, 2024

• [ARM] utf8-validator, like every other SIMD parser on ARM, should take advantage of LD4 and interleaved vectors

  simdutf/simdutf#428 · Filter by author Validark opened on Jun 29, 2024

• Add fast function to characterize a UTF-8 string

  simdutf/simdutf#423 · Filter by author lemire opened on May 9, 2024
  4

• RVV port for Base64 procedures

  simdutf/simdutf#380 · Filter by author WojciechMula opened on Mar 23, 2024
  4

• create higher level base64 functions

  simdutf/simdutf#377 · Filter by author lemire opened on Mar 16, 2024
  4

• Optimize our UTF-8 to Latin 1 routines

  simdutf/simdutf#295 · Filter by author lemire opened on Sep 5, 2023

• Add support for WebAssembly SIMD128

  simdutf/simdutf#212 · Filter by author TerrorJack opened on Feb 1, 2023
  2

• Add SVE support

  simdutf/simdutf#199 · Filter by author bkmgit opened on Dec 20, 2022
  6

• API for escaping characters " \

  simdutf/simdutf#167 · Filter by author HookedBehemoth opened on Sep 10, 2022
  9