Collapse 10,000 log lines into the 20 events that matter.

01 / WHAT IT DOES

A long log is mostly repetition. The same timeout wrapped in different timestamps reads as thousands of separate problems.

Logdedupe replaces the parts that vary — timestamps, request IDs, IP addresses, durations, hex values — with semantic placeholders. Lines that then match are grouped into a single pattern with a count. What you get is the handful of distinct events your log actually contains, ordered by how often each occurred.

• Detects 20+ variable types

  ISO 8601 timestamps, syslog dates, IPv4 and IPv6 addresses, UUIDs, hex identifiers, URLs, file paths, numbers with units — each gets its own placeholder so patterns remain human-readable.

• Sort by what matters

  Sort by frequency to see the noise that dominates your log, or by rarity to find the line that happened once — often the one thing you were looking for.

• Filter and export

  Filter by log level (ERROR, WARN, INFO) or a substring. Export the grouped view as CSV or JSON. Copy individual patterns or the full report.

02 / HOW PATTERNS FORM

Timestamps, IDs and addresses become placeholders. What remains is the signal.

The detection engine runs 15 regex passes in a specific order — UUIDs before hex numbers, IPv6 before IPv4, ISO timestamps before generic time patterns. Each pass replaces a variable with a semantic placeholder like {ISO_TS} or {IP4}, so the resulting pattern says exactly what varied.

03 / WHAT IT WILL NOT DO

Boundaries stated plainly, so you know what this tool is and is not.

• ✘ Parse a vendor-specific format as a schema. Logdedupe detects general patterns — timestamps, addresses, IDs — and does not understand AWS CloudWatch, Datadog, Splunk, or any proprietary log schema. It works on raw text.
• ✘ Connect to a log service. There is no API, no agent, no tail command. You paste text or open a file; Logdedupe processes it and that is the whole integration.
• ✘ Explain what a message means. Logdedupe groups and counts. It does not interpret "connection pool exhausted" or suggest a fix. It shows you how often each thing happened so you can decide what needs your attention.
• ✘ Store anything. Everything runs in your browser. When the tab closes, every line and every pattern is gone. There are no accounts, no servers, no databases — nothing leaves your machine.

04 / WHAT IT COSTS

Free to use. Pro for $19 — no subscription, no tiers.

PASTE A LOG

It is 200ms to find out if this saves you time. Paste something real.

No signup, no account, no data leaves your browser. Open the tool, paste your log, and see the patterns within a second. If it does not work for your log, you have lost nothing but a paste.