This page links to projects that use or enhance slog, the proposed structured logging package for the standard library, accepted for Go 1.21.

A preliminary implementation is at golang.org/x/exp/slog. That won't be receiving any more updates; instead, follow the src/log/slog directory of the main Go repo.

Since slog has been in flux for several months, some of these resources may be out of date and may not build. The API did not change that much, though, so fixes should be straightforward.

Log formatting:

• slog-formatter: Common formatters for slog + helpers for building your own: https://github.com/samber/slog-formatter
• ConsoleHandler (similar to Zap's ConsoleEncoder): https://gist.github.com/wijayaerick/de3de10c47a79d5310968ba5ff101a19
• logf (attr {key} interpolation, rich tty output): https://pkg.go.dev/github.com/AndrewHarrisSPU/logf (uses lazy Handler stores: https://go.dev/play/p/psdD7KDF5fp )
• slogd - slog with duration https://github.com/kaihendry/slogd with video https://youtu.be/IsPa11N5pzI
• tinted (colorized) output: https://pkg.go.dev/github.com/lmittmann/tint
• humane: a human-friendly (but still largely structured) slog Handler: https://github.com/telemachus/humane
• slug: a handler that prints colourful logs for humans: https://github.com/dotse/slug

Logger bridge:

• Zap Handler, a slog handler that uses Zap: https://github.com/chanchal1987/zaphandler

HTTP server middleware:

• slog-gin: Gin middleware for slog logger: https://github.com/samber/slog-gin
• slog-echo: Echo middleware for slog logger: https://github.com/samber/slog-echo
• slog-fiber: Fiber middleware for slog logger: https://github.com/samber/slog-fiber

Log sink:

• Experimental example using both OpenTelemetry and slog: https://github.com/justinsb/experiments-slog
• Simple slog handler with opentelemetry tracing: https://github.com/ttys3/slogsimple/tree/main
• slog-datadog: a slog.Handler for Datadog: https://github.com/samber/slog-datadog
• slog-rollbar: a slog.Handler for Rollbar: https://github.com/samber/slog-rollbar
• slog-sentry: a slog.Handler for Sentry: https://github.com/samber/slog-sentry
• slog-syslog: a slog.Handler for Syslog: https://github.com/samber/slog-syslog
• slog-logstash: a slog.Handler for Logstash: https://github.com/samber/slog-logstash
• slog-fluentd: a slog.Handler for Fluentd: https://github.com/samber/slog-fluentd
• slog-graylog: a slog.Handler for Graylog: https://github.com/samber/slog-graylog
• slog-loki: a slog.Handler for Loki: https://github.com/samber/slog-loki
• slog-slack: a slog.Handler for Slack: https://github.com/samber/slog-slack
• slog-telegram: a slog.Handler for Telegram: https://github.com/samber/slog-telegram
• slog-mattermost: a slog.Handler for Mattermost: https://github.com/samber/slog-mattermost
• slog-microsoft-teams: a slog.Handler for Microsoft Teams: https://github.com/samber/slog-microsoft-teams
• slog-webhook: a slog.Handler for Webhook: https://github.com/samber/slog-webhook
• slog-kafka: a slog.Handler for Kafka: https://github.com/samber/slog-kafka
• slogdriver: a slog.Handler for Stackdriver Logging / GCP Cloud Logging: https://github.com/jussi-kalliokoski/slogdriver

Other:

• Additional resources written by jba: https://github.com/jba/slog
• slog-multi: chain of slog.Handler (pipeline, fanout, ...): https://github.com/samber/slog-multi
• slog-sampling: drop repetitive log entries: https://github.com/samber/slog-sampling
• various handlers: https://github.com/galecore/xslog
• slog-context: adds support to reading values from context: https://github.com/PumpkinSeed/slog-context