Sentry — Error tracking (Open Source)

Sentry is an open-source Error tracking solution from Functional Software. Compare it against 1 other Error tracking tool on FreeSoftwareX — by features, licensing and price — and request a quote or demo free in 2026.

What is Sentry?

Sentry is open source — its source code is publicly available and free to use, modify and self-host, usually with an active community and no licensing fees. It is categorised under Error tracking and published by Functional Software. Buyers typically evaluate Sentry when they need a dependable Error tracking option and want to weigh the trade-offs between free, open-source and paid tools before committing.

Sentry alternatives

If Sentry isn't the right fit, compare these Error tracking alternatives side by side:

GlitchTip

Frequently asked questions

Is Sentry free?
Yes. Sentry is open source and free to use, with no purchase cost for the core product.
What are the best Sentry alternatives?
Popular Error tracking alternatives to Sentry include GlitchTip. See the full list of Error tracking on FreeSoftwareX.
What type of software is Sentry?
Sentry is an open-source Error tracking tool developed by Functional Software.

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