FastRPC

by Ondřej Žára, Seznam.cz · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

This DevTools extension adds another panel that shows decoded FastRPC (protocol v1, v2, v3) requests and responses.

Users

+2 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#151K

#126K among extensions

Version

3.0

updated 28 Aug 2026

Users

monthly, 3 years

Latest, 16 Oct 2026: 20 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years

Latest, 16 Oct 2026: 1 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About FastRPC

This DevTools extension adds another panel that shows decoded FastRPC (protocol v1, v2, v3) requests and responses. The FastRPC protocol is described here: https://github.com/seznam/fastrpc/wiki/FastRPC-binary-protocol-specification