Random Log Generator

Why this random log generator?

Generate Nginx/Apache combined or JSONL logs.
Control status/path/UA distributions for realistic data.
Preview 50 lines and export instantly.
Share settings safely without log output.

Use cases

Parser and pipeline development.
Dashboard or alert testing.
Demo data for workshops.

Quick presets

Pick a preset scenario for common log shapes.

Generate

Choose a format, tune distributions, then generate logs.

Format Lines

Time from (ISO) Time to (ISO)

Use ISO 8601 with timezone (UTC recommended). Example: 2026-01-19T00:00:00Z

Time mode Scenario

Paths (path,weight per line)

Format: /path,weight (weight optional). One per line.

Status weights (status,weight per line)

Format: 200,0.9 (weight optional). Status must be 100–599.

UA mix (desktop/mobile/bot)

Format: desktop,0.7 / mobile,0.25 / bot,0.05

Referrers (value,weight per line)

Format: https://example.com/,0.2 (weight optional). Use - for none.

Bytes min Bytes max

Latency ms min Latency ms max

Request ID

Include trace_id

RNG

Preview

Preview shows the first 50 lines.

Output

Copy or download the full log output.

Examples

203.0.113.45 - - [19/Jan/2026:09:12:33 +0000] "GET /api/v1/users HTTP/1.1" 200 512 "-" "Mozilla/5.0 ..."

FAQ

What is JSONL?

JSONL is newline-delimited JSON: one JSON object per line.

What is a time burst?

Bursty mode concentrates log lines into weighted time windows.

Is seeded mode secure?

No. Seeded mode is for reproducibility only.

Random Log Generator (Nginx/Apache/JSON)

Why this random log generator?

Use cases

Quick presets