Is Regex101 safe to use?

Short answer

Regex101 uploads your files to its servers.

When you use Regex101, your documents are transmitted over the internet to third-party servers for processing. You are trusting their retention, security, and privacy policies with your data — and once a file is uploaded, you cannot verify what happens to it.

The private alternative

Brevio runs every tool entirely inside your browser. Your files are never uploaded — they never leave your device. No account, no server, no retention. You can verify it yourself in the browser network tab.

Frequently asked questions

Is Regex101 better than Brevio for regex?

For dedicated regex work — especially needing multiple language flavors, detailed match explanations, or shareable permalinks — Regex101 is more capable. Brevio's regex tester is suitable for quick JavaScript regex checks.