Logbeam

Readable logs, dark mode for any site, and one-click JSON / JWT / Base64 / timestamp / cron tools. 100% local.

Logbeam makes raw logs readable and keeps everyday developer tools one right-click away. LOG VIEWER (Ctrl+Shift+L) • ERROR / WARN / INFO / DEBUG / TRACE in colour, with counters and one-click filters • Java, Python and Go stack traces stay grouped with their error • Plain-text and regex search with highlighted matches • JSON logs (Logstash, pino, bunyan, zap) shown as readable lines • ANSI colours from CI runners and Docker; GitHub Actions ##[error] / ##[warning] lines and Jenkins consoles understood • Pauses between entries (+30.0s) show where the app stalled • Collapse repeated lines: 500 identical retries become one line with ×500 • Jump to the next error, copy the visible lines • Error timeline: see when errors piled up, click to jump there • Click a line to read it in full, with all JSON fields; share a link to any line (#L120) • Fast on 150,000+ lines: big logs are parsed in a background worker • Press ? to see every keyboard shortcut LEAKED SECRET DETECTION • Flags AWS keys, GitHub / GitLab / Slack / Stripe tokens, Google API keys, JWTs, private keys, passwords in URLs and password=… settings • One click masks them on screen and in everything you copy • "Mask secrets" in the right-click menu cleans up text before you paste it into a chat DARK MODE FOR ANY SITE (Ctrl+Shift+K) • Turn it on for the current tab, or remember it for a site • Photos and videos keep their real colours • Sites that already have a dark theme are left alone FILTER, HIGHLIGHT, PODS • Filter by fields: level=error service=payments duration>500, on JSON and key=value lines • Drag across the timeline to keep one time range • Pin highlights in their own colours • kubectl and docker compose logs: a coloured chip per pod • Open pasted logs and .log / .gz files; save the filtered lines BOOKMARKS, GROUPS, FOLLOW • Bookmark lines with notes and copy a Markdown report for a ticket • Field statistics: the most common values, and for numbers and durations min / median / p95 / p99 / max; one click shows only the slow requests • The same error grouped: count, pods, first and last time • Follow a log that is still being written • JSON as a table, and local time instead of UTC COMPARE TWO LOGS OR JSON DOCUMENTS • What broke this run? The errors that a failing CI run has and the passing one doesn't are listed first, matched by message and stack trace with times and IDs ignored • Line diff with the changed words marked; unchanged parts folded • Ignore timestamps, IDs and durations to compare two runs of the same CI job • JSON compared by key, with a list of changed paths • Right-click → Compare… on one text, then on the other SETTINGS • Your own level words (ALERT → ERROR, AUDIT → INFO) and your own secret patterns • Dark or light theme, or like the system • English and Ukrainian TEXT TOOLS: select text, right-click, then Logbeam • Format / minify JSON • Decode JWT with expiry status • Base64 and URL encode / decode • Unix timestamp ⇄ date • Explain cron expressions (Unix and Spring) • camelCase / snake_case / kebab-case / CONSTANT_CASE • Sort and de-duplicate lines • Mask secrets • "Replace selection" writes the result back into inputs and editors PRIVACY AND PERMISSIONS Everything runs locally in your browser. Logbeam has no server and no analytics, and it sends no network requests. It needs activeTab, scripting, storage and contextMenus. Access to a site is optional and asked for one site at a time, only when you choose "Remember dark mode for this site" or "Open logs automatically" there. Open source: https://github.com/andronaft/Logbeam