RESTer

By: Jan Add-on

A REST client for almost any web service.

Overview

Firefox Add-ons Store

Daily users

9,582 ▼ 280

Data as of 2026-09-29

Rating:

4.82

(108)

Version:

4.15.1

Last updated: 2026-08-25

Features & Capabilities

RESTer is a powerful REST client Chrome extension designed for developers and testers to perform HTTP requests using any method, custom URLs, headers, and bodies. Users can save favorite requests, organize them into collections, and review a comprehensive history of both requests and responses. The extension supports various authentication methods, including Basic and OAuth2, and allows the use of placeholders and keyboard shortcuts for efficient workflow. RESTer ensures privacy by storing all data locally on the user's machine. It requires permissions to access and modify requests only within its own tabs to maintain user security and enhance functionality. Whether testing APIs or exploring web services, RESTer offers an intuitive and feature-rich interface to streamline your HTTP request management.

User Growth & Download Statistics

Add-on Developer Tools Programming

By:

Jan

Daily users:

9,582 -280

Rating:

4.82

(108)

Version:

4.15.1 Last updated: 2026-08-25

Version code:

6416004

Creation date:

2015-08-17

Firefox add-on GUID:

rester@kuehle.me

Firefox add-on numeric ID:

643850

Weekly download count:

Firefox on Android:

Risk:

Permissions:

Size:

2.17MB

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-09-29

Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:: Jan
Firefox Add-ons Store: https://addons.mozilla.org/firefox/addon/rester/
Website:: https://github.com/frigus02/RESTer/issues

User Reviews

Reviews are overwhelmingly positive: users praise the add-on’s intuitive GUI, reliable REST functionality, and suitability as a primary workhorse tool. There are isolated reports of installation, encoding, and POST issues, but none of those problems appear across multiple reviews, so no consistent technical complaint emerges.

Pros

Intuitive, easy-to-use GUI praised by multiple users
Solid functionality — performs the expected REST tasks reliably
Frequently called the best/most useful REST plugin and suitable as a workhorse
Widely well-liked and recommended by users

Cons

No single technical problem was reported by multiple reviewers; no widespread cons found

Recent reviews

easy and great

by Fi***** 2026-04-16

by Da***** 2026-03-06

View all user reviews ›

Is RESTer Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

RESTer requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
Medium ****** ********** ** ******** ********** *** ********* ******* ******** ****** ******** ****** ********

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

RESTer is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******