open-flag

The premium Open Source alternative to Splunk

🎯 Best for:High-volume log ingestion scenarios.
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What is open-flag?

A horizontally scalable log management system built on Go, Kafka, and S3-compatible storage. It replaces expensive log ingestion services like Splunk by leveraging low-cost object storage and high-throughput stream processing.

Tech Stack
PythonMonitoring & Logs

Why open-flag?

  • Horizontally scalable
  • Uses cheap S3 storage
  • Modern Go/gRPC stack

Limitations

  • Requires Kafka (Complex)
  • Heavy infrastructure footprint
  • Self-managed updates
10/15/2025
Last Update
0
Forks
0
Issues
Unknown
License
Financial Leak Detected

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Competitor Cost
-$1,440
/ year (est. based on Splunk)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%

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