The three real options for overriding responses in a live browser session, compared honestly.
| Capability | DevTools Local Overrides | Requestly | WebWarp |
|---|---|---|---|
| Price | Free | $10–15/user/mo (BrowserStack) | $19–38/mo · $99 LTD at launch |
| Override response bodies | Yes | Yes | Yes |
| Override response headers | Yes | Yes | Yes |
| Modify request headers | No | Yes | Via rules |
| Scoped rules (URL + query + cookie conditions) | No — global per folder | Yes | Yes |
| Persist across sessions & profiles | Per browser profile, folder-based | Yes (cloud) | Yes (workspace) |
| Team sharing of rule sets | No | Yes | Yes |
| Browsers | Chrome/Edge only | Chrome, Edge, Firefox | Chrome, Edge, Firefox |
| Setup time | ~2 min (if you know it exists) | Account + extension | Account + extension |
| Open source / self-host | Built into the browser | Open core | No |
| Cache impact | Disables cache while active | No impact | No impact |
| Blocks/redirects/delays without DevTools open | No | Yes | Yes |
If you mock one endpoint occasionally and live in Chrome: use DevTools Local Overrides. It's free and built-in. Don't pay anyone for that.
If you're a team that needs shared rule sets, scoped conditions, and cross-browser coverage, and you're already paying for Requestly: it's a fine product and the acquisition by BrowserStack hasn't ruined it.
If you want the team-grade workflow without per-user subscription pricing — especially if you're one developer who just doesn't want another $180/yr line item — that's the exact slot WebWarp was built for. And during launch, $99 once buys it forever.
Everything in Pro, forever, one payment of $99. When 100 are gone, the deal ends — no extensions, no "just kidding." Live counter on the pricing page.
Claim a founder seat →14-day trial also available (card required, charged day 15, cancel anytime). Monthly plans from $19.