# Any alternative to requestly? **URL:** \ **Category:** Discussion & Solutions\ **Tags:** solved\ **Created:** [March 16, 2026, 6:10pm UTC](https://onehack.st/t/any-alternative-to-requestly/319742 "2026-03-16T18:10:00Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![LaurentSP](https://onehack.st/user_avatar/onehack.st/laurentsp/32/149658_2.png) [@LaurentSP](https://onehack.st/u/LaurentSP)\ **Post date:** [March 16, 2026, 6:10pm UTC](https://onehack.st/t/any-alternative-to-requestly/319742/1 "2026-03-16T18:10:01Z")
I thought I had found an useful tool. > **[HTTP Interceptor - Requestly](https://requestly.com/products/http-interceptor/)** > > Open Source Intercept and modify network requests faster than ever An open-source tool to intercept & modify network requests, headers, API requests, inject scripts & much more. Download Now Requestly Works on Desktop Only Requestly isn’t available... Unfortunately, it became restricted, even if claimed as “open source” : [https://app.requestly.io/pricing](https://app.requestly.io/pricing) Any similar tool with no restrictions ? ---
**Author:** ![k1neroast](https://onehack.st/user_avatar/onehack.st/k1neroast/32/168827_2.png) [@k1neroast](https://onehack.st/u/k1neroast)\ **Post date:** [March 16, 2026, 7:34pm UTC](https://onehack.st/t/any-alternative-to-requestly/319742/2 "2026-03-16T19:34:06Z")
# 🥇 Best No-Restriction Alternative to Requestly ## **Relay (Chrome Extension)** **Relay** is an **open-source browser extension** that lets you intercept and modify HTTP requests directly inside your browser. It doesn’t require an account or paid plan. ### Why it’s the best unrestricted alternative - ✅ **No login required** - ✅ **Open source** - ✅ **No rule limits** - ✅ **Works directly in the browser** - ✅ **Free** You install it and start intercepting requests immediately. * * * # 🔧 Main Features ### 1️⃣ Intercept HTTP requests Relay can capture requests made by websites and APIs. You can see: - headers - request body - parameters - response data This helps debug frontend apps and APIs. * * * ### 2️⃣ Modify requests You can edit requests before they are sent. Examples: - Change **Authorization headers** - Modify **POST body** - Add or remove headers - Change query parameters This is useful for testing APIs or bypassing certain checks during development. * * * ### 3️⃣ Run API requests directly in the browser Relay can send requests manually like a mini **Postman inside Chrome**. You can: - run REST requests - test endpoints - export requests as **cURL commands**. * * * ### 4️⃣ Save and organize sessions Relay lets you save request sessions so you can reuse them later for debugging or testing. * * * # 🧠 When Relay is best Relay is ideal if you want something: - similar to **Requestly** - **100% free** - **no account** - **no SaaS limits** - **browser-only tool** * * * # ⚡ Other good “no restriction” alternatives ### **mitmproxy** - advanced interception tool - CLI-based - extremely powerful - used in security research ### **HTTP Toolkit** - intercepts traffic from apps, browsers, and mobile - supports mocking APIs ### **Tweak** - modify HTTP requests easily - good for frontend testing There are **25+ tools similar to Requestly** including Postman, mitmproxy, and Fiddler depending on your use case. * * * ✅ **My recommendation** If you want something **closest to Requestly but with no restrictions** : 👉 **Relay** If you want something **much more powerful** : 👉 **mitmproxy** ---
**Author:** ![Fam](https://onehack.st/user_avatar/onehack.st/fam/32/154440_2.png) [@Fam](https://onehack.st/u/Fam)\ **Post date:** [March 16, 2026, 8:15pm UTC](https://onehack.st/t/any-alternative-to-requestly/319742/3 "2026-03-16T20:15:18Z")
Requestly has indeed shifted to a more restricted model over time. While the core remains **open-source** on GitHub (requestly/requestly) and you can still use many features for free or self-host parts of it, the cloud-synced features, unlimited rules/mocks, team collaboration, and some advanced modifications now push toward paid plans (as seen on their pricing page). This is a common evolution for freemium dev tools. Here are some solid **similar tools** that focus on being unrestricted, fully open-source, or truly free forever with no artificial limits on core interception/modification features: ### Strong open-source alternatives (browser extensions or desktop apps) - **Inssman** A fully open-source Chrome/Firefox extension specifically for modifying HTTP requests and responses. Features: Custom rules to modify headers, change responses, block requests, redirects, custom HTML/CSS/JS/JSON injection, logging. No paid tiers or restrictions mentioned — completely free and open-source. GitHub: [https://github.com/vvmgev/Inssman](https://github.com/vvmgev/Inssman) Chrome Web Store: Search for “Inssman: Open-Source: Modify HTTP Request”. - **HTTP Toolkit** Excellent open-source desktop app (with browser integration via extensions) for intercepting, viewing, debugging, and mocking HTTP(S) traffic. It works system-wide or per-browser, supports request/response modification, rules, breakpoints, and injecting custom responses/scripts. Fully free for most use cases, open-source core, no hard limits on rules or modifications (some advanced team/cloud features are paid, but local usage is unrestricted). Highly regarded as a modern Charles/Fiddler alternative. Website: [https://httptoolkit.com](https://httptoolkit.com) - **Tamper Dev** (formerly Tampermonkey-like for requests, but focused on interception) Chrome extension that lets you intercept, inspect, and edit live HTTP requests/responses. Very powerful for on-the-fly modifications. Free, no mentioned restrictions. ### Other good open-source options (more API client + some interception) If you’re okay with a tool that’s stronger on API testing but still offers interception/modification: - **Hoppscotch** (formerly Postwoman) — Fully open-source, lightweight API client with request interception in browser contexts. - **Bruno** — Open-source, Git-friendly API client (local files, no cloud required). - **Insomnia** (core is open-source) — Great for API work, with some proxy/interception capabilities. ### Quick comparison table for interception focus | Tool | Type | Fully Open-Source | No Usage Limits | Modification Types | Desktop or Browser | | --- | --- | --- | --- | --- | --- | | Inssman | Browser extension | Yes | Yes | Headers, response, block, redirect, inject | Browser | | HTTP Toolkit | Desktop + browser | Core yes | Yes (local) | Full proxy: mock, rewrite, breakpoints | Desktop/Browser | | Request Interceptor | Browser extension | Partial? | Yes | Redirect/block, headers, query params | Browser | | Easy Interceptor | Browser extension | Yes | Yes | Overwrite response for XHR/fetch | Browser | Many users who got frustrated with Requestly’s limits have switched to **Inssman** or **HTTP Toolkit** for pure interception work without nagging upgrades. If you tell more about your main use case (e.g., header mods only, API mocking, script injection, mobile debugging), I can narrow it down further! ---
**Author:** ![LaurentSP](https://onehack.st/user_avatar/onehack.st/laurentsp/32/149658_2.png) [@LaurentSP](https://onehack.st/u/LaurentSP)\ **Post date:** [March 17, 2026, 1:34am UTC](https://onehack.st/t/any-alternative-to-requestly/319742/4 "2026-03-17T01:34:15Z")
Thanks. Well, this one looks a good alternative for me : [https://httptoolkit.com/](https://httptoolkit.com/) ---
**Author:** ![Jenna](https://onehack.st/user_avatar/onehack.st/jenna/32/166322_2.png) [@Jenna](https://onehack.st/u/Jenna)\ **Post date:** [May 5, 2026, 5:11pm UTC](https://onehack.st/t/any-alternative-to-requestly/319742/5 "2026-05-05T17:11:04Z")
Sounds like the freemium speedrun got you. Found a thing → it worked → `"10 rules limit"` wall dropped → you came here. The universal pain underneath: _“free becomes freemium becomes pay-up the second I started relying on it.”_ Three things to know, in order. * * * **🎯 Your browser already does most of this** Chrome shipped **Override Content** in **2018**. **Override Headers** in **March 2023**. Right-click a request in DevTools → `Override headers` or `Override content` → edit → persists across reloads. ▸ No extension. ▸ No signup. ▸ No rule cap. → [Native Chrome docs](https://developer.chrome.com/docs/devtools/overrides) ⚠ _If `Override headers` isn’t in your right-click menu, that’s just an older Chrome. Update to 111+ (`chrome://version` to check) and it appears._ What DevTools **won’t** do: modify _request_ headers or _request_ body. For those, escalate ↓ * * * **🪄 The escalation table** | If you need… | Use this | | --- | --- | | 🟢 Modify response body / headers only | DevTools Overrides (above) | | 🟢 Drop-in extension, MIT, no rule cap, no signup | **[Inssman](https://github.com/vvmgev/Inssman)** | | 🟡 Intercept everything — Docker, Android, Node, terminal, browser | **[HTTP Toolkit](https://github.com/httptoolkit/httptoolkit)** | | 🟡 Modify request headers (the DevTools gap) | Inssman or HTTP Toolkit | _I keep DevTools Overrides set up for the 80% case — mocking JSON while a backend dev finishes their endpoint — and HTTP Toolkit pinned for the 20% where I need request headers or to intercept a Node process. Took me a year to realise I’d been installing browser extensions for something Chrome shipped in 2018. Filing this so you don’t lose that year._ * * * **🪤 Three cheat codes Google won’t show you** > **🎭 #1 — Keep using Requestly itself, paywall-free** > > There’s a self-host workflow posted inside **Requestly’s own GitHub discussions** , acknowledged by the maintainer in the same thread: > > → [https://github.com/orgs/requestly/discussions/594](https://github.com/orgs/requestly/discussions/594) > > **Recipe:** > > 1. Clone the Requestly repo > 2. Run the local build: > > ```auto > sh install.sh local && sh build.sh local > > ``` > > 3. Edit your hosts file: > > ```auto > 127.0.0.1 app.requestly.io > > ``` > > 4. Point a local webserver at the build output > > Same UX you liked. No cloud round-trip. No rule cap. > > > 💡 Works because the extension just talks to whatever’s at `app.requestly.io` — and now that’s your laptop. The maintainer can’t paywall a hosts-file entry. > **🧨 #2 — Power-user tier (when extensions run out)** > > **🌐 [Whistle](https://github.com/avwo/whistle)** — 15.3k ⭐, MIT, Node-based proxy. > > → [Desktop client](https://github.com/avwo/whistle-client/releases) shipped **v1.5.3 on Jan 1, 2026** — skips the npm setup pain. > → English README at `README-en_US.md` if the UI feels too 中文. > > * * * > > **🛡 [Burp Suite Community](https://portswigger.net/burp/communitydownload)** — free with PortSwigger account. > > → Under `Proxy → Match and replace`, covers literally everything Requestly did. > → Plus Repeater, Decoder, full proxy history. > → [Starter rule library](https://github.com/daffainfo/match-replace-burp). > > * * * > > **📜 30-line userscript** in [Tampermonkey](https://www.tampermonkey.net/) or [Violentmonkey](https://violentmonkey.github.io/). > > → Code you wrote yourself can’t be paywalled. > → [Working fetch-interception template](https://github.com/Tampermonkey/tampermonkey/issues/2382) — copy → paste → modify → yours forever. > > > 💡 Most permanent solution that exists. No vendor to outlive, no pricing page to read. > **🪦 #3 — The graveyard (don't fall for these)** > > ⚠ **ModHeader** — the #1 “free alternative” on every 2024 listicle. ALSO went freemium — **10-rule cap** on free tier. Same disease. Skip it. > > ⚠ **Resource Override** — stopped MV3 migration. Chrome shows removal warning. Dead. > > ⚠ **Charles Proxy** — paid ($50). 30-min trial loop. Marketed as “free trial.” Don’t waste the click. > > ⚠ **Fiddler Everywhere** — Telerik freemium with account wall. Same disease as Requestly. > > ⚠ **Postman / Insomnia** — recommended in every listicle, but they’re API _clients_, not interceptors. Different category. * * * You said you thought you’d found a useful tool. Turns out it was sitting in your browser the whole time.