Sample Reports

Visualize Your Server Logs

Upload your access log file to generate a fully interactive, web-based playback of your traffic.

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Drag & Drop Log File Here

or click to browse directories

Supports .log, .txt, .gz, .bz2, .zip (Max 500MB)
Uploading File... 0%
0.0 MB/s ETA: --:--

Retro Arcade Server Replays

This platform parses standard web server access logs and transforms them into an interactive 2D simulation reminiscent of 1970s pong games.

  • Pong Balls: Represent incoming HTTP requests traveling from client to file paths.
  • Defending Paddle: Moves dynamically to bounce successful requests (2xx, 3xx).
  • Failed Paths: Let 404s and 500s slip through, creating retro neon explosions.
  • Interactive HUD: Click on client IP nodes or URL paths to pause and inspect traffic stats.
🔒 Privacy First: Uploaded logs are processed incrementally in a secure isolated cache. Generated reports are kept for exactly 30 days before being automatically deleted. No emails, registration, or trackers.

Sample Reports

Don't have a log file handy? Jump straight into the action with these pre-processed sample visualize replays representing real server traffic patterns.

🌐 Production Website Sandbox

A standard Apache combined access log illustrating normal daily traffic, mixed with occasional search crawlers and redirect actions.

Launch Visualizer

Why Visualize Web Server Access Logs?

⚡ Audit Traffic Spikes Instantly

Traditional raw text log files make it incredibly difficult to spot visual relationships in client behavior. By replaying access hits, you can immediately identify brute-force attacks, aggressive crawlers, or high-volume API consumers.

🧩 Identify Broken Assets & 404s

Watch 404 (Not Found) errors slip past the pong paddle and trigger explosions. This makes spotting missing files, faulty static assets, or malicious scrapers trying to brute-force URLs simple and intuitive.

🎮 Developer-Friendly Playback Controls

Unlike standard command-line reporting engines (e.g. GoAccess or Awstats), Logstalgia Online includes play/pause, time scrubbing sliders, and acceleration modifiers from 1x to 100x speed. Pause the screen to inspect individual request metadata.

Frequently Asked Questions

What file formats are supported?
We support standard Apache and Nginx Combined Log formats, as well as Common Log Format. If your file is compressed to save bandwidth, you can upload it directly as a `.zip`, `.gz` (Gzip), or `.bz2` (Bzip2) archive.
How does chunked upload work?
To upload files up to 500MB without hitting shared hosting limits, our client-side JavaScript reads your file locally, slices it into tiny 2MB packets, and uploads them sequentially. If a packet fails, it automatically retries, ensuring reliable uploads.
Is my upload size limited?
Yes, we have established a limit of 500MB per file. This is generally more than enough to store several days or weeks of high-volume web logs. Compressed files (e.g., zip) can represent several gigabytes of uncompressed text.
Is my data secure?
Yes. Files are uploaded directly to a temporary scratchpad on our secure DreamHost server. During parsing, IPs are aggregated and files are split into compressed JSON blocks. The raw uploaded files are deleted immediately after parsing completes, and all parsed results are automatically purged after 30 days.