Synthetic HTTP traffic generator

Put your endpoints
under real pressure.

pressure. fires controlled, randomized HTTP traffic at the endpoints you own — random intervals, real browser profiles, server-side — so you can watch latency, errors and throughput move under load in real time.

Free to start · for endpoints you control
pressure.▶ Start
Requests
12,480
Success
99.8%
Avg latency
142ms
21:11:58GET200https://api.acme.dev/v1/orders142ms
21:11:55GET200https://acme.dev84ms
21:11:52GET200https://shop.acme.dev/cart415ms
21:11:49GET200https://api.acme.dev/health40ms
21:11:46GET200https://cdn.acme.dev/assets125ms
21:11:43GET503https://auth.acme.dev/session503ms
21:11:40GET200https://api.acme.dev/v1/users165ms
21:11:37GET200https://status.acme.dev43ms
21:11:58GET200https://api.acme.dev/v1/orders142ms
21:11:55GET200https://acme.dev84ms
21:11:52GET200https://shop.acme.dev/cart415ms
21:11:49GET200https://api.acme.dev/health40ms
21:11:46GET200https://cdn.acme.dev/assets125ms
21:11:43GET503https://auth.acme.dev/session503ms
21:11:40GET200https://api.acme.dev/v1/users165ms
21:11:37GET200https://status.acme.dev43ms
12,480
Requests fired
99.8%
Success rate
142ms
Avg latency
Targets per account
What you get

Traffic that behaves like the real thing.

01

Randomized intervals

Each target fires on its own random interval between a min and max in seconds — no robotic, predictable cadence.

02

Real browser profiles

Every request picks a random User-Agent with matching headers, so traffic reads like real clients, not a script.

03

Server-side requests

Requests fire from the server with redirect set to manual — clean, consistent timing against the endpoints you've added, without browser CORS limits.

04

Live metrics

Total requests, success rate, errors and average latency update in real time as traffic flows.

05

Per-target control

Toggle each target on or off, tune its interval and traffic level, edit or delete — without stopping the run.

06

Tamper-proof attribution

Every request carries X-Pressure-Operator with your email, stamped server-side and impossible to override.

How it works

Four steps from sign-in to live load.

01

Sign in with Google

Any Google account works. The panel and API are gated behind your authenticated session.

02

Add your targets

Add the endpoints you own or are authorized to test, set the interval range and traffic level. Config is saved to a hosted Postgres database.

03

Hit start

Traffic fires while the panel tab is open — fully client-driven and under your control.

04

Watch it flow

Recent requests, latency and error rates stream live in the panel as it happens.

Gated & attributed

Login-gated, private per account, and stamped on every request.

Private per account

Each Google account sees and manages only its own target list. Targets are never returned to anyone else.

Operator-stamped

X-Pressure-Operator identifies who sent every request, set from the session — it can't be spoofed by a manual header.

You hold the trigger

Firing only runs while your panel tab is open. Close the tab and the traffic stops.

headerX-Pressure-Operatoryou@gmail.com

Start applying pressure.

Sign in with any Google account and start load-testing your first endpoint in under a minute.