Log Voyager

Analyze huge log files (10GB+) instantly in your browser.

2 followers

Analyze huge log files (10GB+) instantly in your browser.

2 followers

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Analytics Databases

Free online tool for DevOps to view and analyze giant log files (10GB+) directly in the browser. Local processing, privacy-first, JSON formatting, and warp jump bookmarks.

This is the 2nd launch from Log Voyager. View more

Log Voyager

Launched this week

Find errors in huge logs without uploading them

Log Voyager analyzes large log files locally in your browser. The new release detects common log formats, maps timestamped events on an interactive timeline, and groups repeated errors into useful signatures. Files stay on your device. No account, upload, or installation required.

Free

Launch tags:Open Source•Developer Tools•GitHub

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Customer.ioAutomate Messaging Everywhere — Startups Get 12 Months Free

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Maker

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Hi Product Hunt, I built Log Voyager because inspecting a production log should not require uploading it to another company. The first version focused on opening and searching large files locally. Version 2.1 adds the analysis features I kept missing during real debugging sessions: • automatic detection for JSONL, Docker, Kubernetes CRI, Nginx, Apache and syslog • an interactive timeline that shows warning and error spikes • grouping of repeated errors while ignoring changing timestamps, IDs and IP addresses • improved light and dark themes across the analyzer and documentation Log Voyager reads small file slices instead of loading the entire file into memory. This lets it start working with multi-gigabyte logs quickly while keeping the source file on your device. It is free, MIT licensed, requires no account and works offline after the PWA is cached. I would especially like feedback on the timeline and error grouping. What information do you normally need first when investigating an unfamiliar log?

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2d ago

Previous Log Voyager Launches

Log VoyagerAnalyze huge log files (10GB+) instantly in your browser.

Launched on January 19th, 2026

Forum Threads

p/log-voyager

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2d ago

What do you look for first in an unfamiliar log file?

I m working on Log Voyager, a browser-based log analyzer that keeps the selected file on your device.

While building the latest version, I noticed that my first steps are usually the same: identify the format, check the time range, find spikes in warnings or errors, and see whether the same failure keeps repeating with different IDs or timestamps.

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