Tau-marked testing tools

Capture every test signal with a clean edge.

Disposable inboxes, live webhook capture, and schema assertions for teams that need to see exactly what their systems sent. Free V1 runs on Cloudflare, no account required.

Inspect a hook Open an inbox

Disposable email

MAIL

Send anything to <name>@mail.testtau.com and read it instantly.

sgmnj8q7@mail.testtau.com

Open inbox

Webhook capture

HOOK

Point a webhook at hook.testtau.com/<id>. Inspect every request live.

https://hook.testtau.com/h6456amtbh

Inspect hook

Private teams

LATER

Accounts, private namespaces, longer retention, and billing are intentionally out of V1.

public mail + public hooks first

Read limits

Anonymous by default

No accounts. Knowing the URL grants access. Don't send real secrets.

Live updates

WebSocket inspector. New messages and requests appear instantly.

48-hour retention

Data auto-deletes after 48 h. R2 lifecycle is a 14-day backstop.

Open & inspectable

Download raw .eml or replay captured webhooks against any URL.