Curated Issues

C Good First Issues

Browse open source issues tagged with C in the issue metadata. Results stay focused on work that can become public contribution evidence.

1,668 matching issues

C

Slice signals

  • Average annotated difficulty: 2.7/5 across 1,905 issues.
  • 70% of 1,905 time estimates are one day or less.
Open
2.6.0 : Visual Studio : some warnings as errors
Area: Buildgood first issue
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelRepository active this monthContributing guide available

microsoft / msquic · #6234 · Aug 14, 2026 · C · 4,758 stars

3 comments0 reactions0 assignees
Open
Button Handling with CH32v003
Help WantedUtility
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelRepository active this monthContributing guide available

AEFeinstein / Super-2024-Swadge-FW · #651 · Aug 7, 2026 · C · 32 stars

0 comments0 reactions0 assignees
Open
Piece Table
enhancementhelp wantedquestion
Why recommendedHas a beginner-friendly label · Repository active this month
Has a beginner-friendly labelRepository active this month

Lucasplaygaemes / a2 · #33 · Aug 4, 2026 · C · 1 star

1 comment0 reactions1 assignee
Open
openssl 3.5.6 AES-256-CBC bad decrypt
branch: 3.5branch: 3.6branch: 4.0branch: masterhelp wantedtriaged: bug
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

openssl / openssl · #31246 · May 20, 2026 · C · 30,157 stars

2 comments0 reactions0 assignees
Open
Not boot without wifi.
help wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

SpacehuhnTech / esp8266_deauther · #1793 · May 12, 2026 · C · 14,772 stars

0 comments0 reactions0 assignees
Open
PKCS12 - Ability to use PRF hmacWithSHA512
help wantedissue: feature requesttriaged: feature
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

openssl / openssl · #31120 · May 8, 2026 · C · 30,157 stars

1 comment0 reactions0 assignees
Open
Improve Validation of Geo Binary Base
enhancementgood first issuerefined
Why recommendedHas a beginner-friendly label · Contributing guide available
Has a beginner-friendly labelContributing guide available

nginx / nginx · #1321 · May 6, 2026 · C · 30,331 stars

1 comment0 reactions1 assignee