Mock Dream vs Tweak
API mocking extension · free Chrome alternative
Tweak is a Chrome extension by Ghost Inspector that lets you override responses with simple rules.
Where Tweak wins
Familiar UI for QA teams, integrates with Ghost Inspector test runs.
Where Mock Dream wins
Mock Dream gives you a richer JSON editor, per-rule CORS, traffic console and a free aesthetic that doesn't look like a 2014 form.
Side-by-side
| Feature | Tweak | Mock Dream |
|---|---|---|
| Pricing | Free, ties into paid Ghost Inspector | Free forever |
| Sign-up required | Optional | Never |
| Runs a server | No | No — runs in your tab |
| Mocks fetch + XHR | Both | Both, from one rule |
| Per-rule CORS | No per-rule toggle | One toggle |
| Live traffic console | Basic log | Built-in, filterable |
| Themes | 1 (default) | 6 manga themes |
| Install size | ~2 MB extension | <300 KB extension |
FAQ
- Is Mock Dream really a free Tweak alternative?
- Yes. Mock Dream is MIT-licensed, has zero paid tier, no telemetry, and stores everything locally in
chrome.storage.local. - Can it replace Tweak for my workflow?
- If your job is "intercept fetch/XHR in a browser tab and return mock JSON", yes. If you need familiar ui for qa teams, integrates with ghost inspector test runs., keep Tweak — Mock Dream and Tweak can coexist on the same machine.
- Does Mock Dream work on Edge, Brave, Opera or Arc?
- Yes — any Chromium browser running Manifest V3 (Chrome 116+).
Try Mock Dream — no install, no sign-up
popup runs the same engine as the extension