uber-go/zap

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Blazing fast, structured, leveled logging in Go.

Stars: 24.7k
Forks: 1.6k
Open beginner issues: 0
Indexed issues: 123
Avg merge: 2d 2h
Merged PRs (30d): 11

Dominant language: Go
License: MIT
Last GitHub push: Sep 16, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted

Beginner friendly Everything

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123 open issues indexed

Zerolog table formatting Open

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

uber-go/zap#1548 · Opened May 14, 2026
zapgrpc: verbosity level check is incorrect Open

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

uber-go/zap#1544 · 1 comment · Opened Apr 17, 2026
feat: introduce `CanBeMasked`, `SecurityStringer` type for sensitive data handling Open

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

uber-go/zap#1531 · 1 comment · Opened Feb 27, 2026
Add zaptest option to suppress logging after test completion Open

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

uber-go/zap#1526 · 2 comments · Opened Feb 11, 2026
Improve memory consumption of the log sampler Open

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

uber-go/zap#1516 · 3 comments · Opened Oct 27, 2025
New Text Encoder with Flattened Dot-Separated Keys for Improved Readability and Performance Open

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

uber-go/zap#1509 · 3 reactions · Opened Sep 17, 2025
Badly coded MarshalLogObject can panic zap Open

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

uber-go/zap#1504 · Opened Jun 3, 2025
Basic L() log functionality doesn't work Open

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

uber-go/zap#1503 · 1 comment · Opened May 29, 2025
Reusing sampler counters across multiple sinks Open

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

uber-go/zap#1498 · 3 reactions · Opened May 12, 2025
zap.Any should explicitly support slog.Attr and slog.LogValuer Open

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

uber-go/zap#1497 · Opened Apr 29, 2025
zaptest logger outputs logs with incorrect source file and line Open

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

uber-go/zap#1493 · 1 comment · 7 reactions · Opened Mar 20, 2025
Should be able to call Fatal without exiting Open

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

uber-go/zap#1492 · 1 comment · Opened Mar 15, 2025
Best-Practice to defer logger.Sync() Open

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

uber-go/zap#1491 · Opened Mar 14, 2025
OTLP Integration for Tracing and Logs Open

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

uber-go/zap#1488 · 1 comment · 10 reactions · Opened Feb 11, 2025
Switching between log sinks during runtime Open

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

uber-go/zap#1472 · 1 comment · Opened Nov 25, 2024
Unable to delete the log file used by zap. Open

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

uber-go/zap#1469 · 1 comment · Opened Nov 15, 2024
exp: zapslog / replaceattr support Open

enhancement

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

uber-go/zap#1468 · 1 comment · Opened Nov 12, 2024
Manipulate the function name printed in the output at runtime Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

uber-go/zap#1467 · 2 comments · Opened Nov 8, 2024
Error encoder: extra zap fields on new interface type Open

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

uber-go/zap#1462 · 5 comments · 2 reactions · Opened Aug 29, 2024
EntryCaller output path is too long or too short Open

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

uber-go/zap#1457 · 4 comments · Opened Aug 7, 2024
Log Records getting skipped after rotation Open

Difficulty 4/5 3-5 days Newbie friendliness 28/100

uber-go/zap#1448 · 2 comments · Opened Jun 13, 2024
Add option to wrap/override sink and encoder Open

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

uber-go/zap#1438 · 1 reaction · Opened May 25, 2024
Add custom configurable separator for console logger before start of the message. Open

enhancement

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

uber-go/zap#1427 · Opened Apr 7, 2024
zapslog: Support for a custom mapping of slog.Level to zap.Level Open

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

uber-go/zap#1412 · Opened Feb 7, 2024
Allow copying `fields` when using `WrapCore` Open

uber-go/zap#1394 · 1 assignee · Opened Dec 11, 2023
invalid compressed data--format violated Open

waiting for author

Difficulty 4/5 3-5 days Newbie friendliness 20/100

uber-go/zap#1392 · 4 comments · Opened Dec 5, 2023
Vulnerability scanning shows unsanitized input, path traversal issue in zap Open

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

uber-go/zap#1390 · 7 comments · Opened Nov 28, 2023
Non-sugared logger always slower than the sugar counterpart Open

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

uber-go/zap#1385 · 3 comments · Opened Nov 9, 2023
Implement logging.Logger interface from go-grpc-middleware/v2 Open

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

uber-go/zap#1379 · 1 comment · Opened Nov 3, 2023
Preserve the dedicated stack trace object all the way to encoder Open

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

uber-go/zap#1373 · 2 comments · Opened Oct 11, 2023
zapcore: Support ObjectMarshaler for error types Open

uber-go/zap#1365 · 3 reactions · 1 assignee · Opened Sep 27, 2023
support non-clone zapcore Open

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

uber-go/zap#1348 · 2 comments · Opened Sep 8, 2023
zapslog stabilization tracking issue Open

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

uber-go/zap#1333 · 10 comments · 4 reactions · Opened Aug 23, 2023
Supporting log overrides/log markers with log levels Open

enhancement

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

uber-go/zap#1295 · 3 comments · Opened Jun 29, 2023
Allow specifying user defined log level names Open

2.0 enhancement

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

uber-go/zap#1277 · 4 comments · 4 reactions · Opened Apr 26, 2023
zapslog: Move to root Zap module Open

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

uber-go/zap#1270 · 7 comments · 5 reactions · Opened Apr 9, 2023
zapgrpc implements Experimental grpclog.DepthLoggerV2 Open

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

uber-go/zap#1267 · 1 comment · Opened Apr 5, 2023
jsonEncoder.safeAddString panic Open

waiting for author

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

uber-go/zap#1264 · 9 comments · Opened Mar 27, 2023
deadlock when use with lumberjack in multi goroutine Open

waiting for author

Difficulty 4/5 3-5 days Newbie friendliness 20/100

uber-go/zap#1243 · 3 comments · Opened Mar 7, 2023
Provide rate-limited async logging interface Open

enhancement

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

uber-go/zap#1230 · 4 comments · 1 reaction · Opened Feb 11, 2023
[zapcore] can `zapcore.Core` expose its `ioCore` config by adding some methods ? Open

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

uber-go/zap#1226 · 2 comments · Opened Feb 3, 2023
http.MethodGet lost setLevel Open

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

uber-go/zap#1225 · 2 comments · Opened Jan 30, 2023
Incorrect caller when logs originate from modules with a major version suffix Open

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

uber-go/zap#1209 · 1 comment · Opened Dec 1, 2022
support timeout for write Open

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

uber-go/zap#1196 · 2 comments · Opened Nov 9, 2022
Does zap have its own log rolling implementation? Open

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

uber-go/zap#1194 · Opened Oct 29, 2022
Support for errors.Unwrap() Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

uber-go/zap#1186 · 2 comments · Opened Oct 7, 2022
provides an option to turn off errorVerbose output Open

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

uber-go/zap#1168 · 1 comment · 1 reaction · Opened Aug 29, 2022
Adding a key value pair encoder. Open

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

uber-go/zap#1142 · 3 reactions · Opened Aug 3, 2022
There should be a hard limit on the maximum buffer to place back in the sync.pool Open

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

uber-go/zap#1130 · 2 reactions · Opened Jul 13, 2022
Feature Request: Add support for `netip` `Addr` and `AddrPort` value types Open

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

uber-go/zap#1125 · 1 comment · Opened Jul 10, 2022

uber-go/zap

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