Online REST Client
Sends HTTP requests to a JSON API and shows the response.
Artifact by ExtendsClass
Use it
Opens extendsclass.com in a new tab. Nothing to install.
- You provide
- URL, method, headers, body
- You get
- Response status, headers and body
- Account
- No sign-up needed
- AI
- No AI: a plain tool
- Your input
- Not stated: check the tool's privacy notes before using private data
- Price
- Free to use
- Made with
- Hosted web tool
- Source
- Source code not public
- Link check
- Answered on Oct 31, 2026
About
Category: Developer tools · rest client
Reviews
Write a reviewNo reviews yet. Used it? Sign in with an established GitHub account to rate it. How reviews work
More developer tools tools
- 0.886score
Svelte Playground
Svelte team
Write Svelte components in the browser with a live preview and shareable URL.
ArtifactNo sign-up★ 88.5Kdeveloper tools - 0.874score
Vue SFC Playground
Vue team
Edit Vue single-file components and see the compiled result and preview instantly.
ArtifactNo sign-up★ 54.8Kdeveloper tools - 0.873score
Hoppscotch
hoppscotch
An open-source API client for building and testing REST and GraphQL requests, usable in the browser.
Artifact★ 80.7Kdeveloper tools - 0.867score
IT Tools
Corentin Thomasset
Collection of small developer utilities such as encoders, hash generators, converters and calculators, grouped in one app.
ArtifactNo sign-up★ 41.1Kdeveloper tools - 0.866score
ShellCheck
ShellCheck
Analyses shell scripts online and points out bugs and portability problems.
ArtifactNo sign-up★ 40.3Kdeveloper tools - 0.866score
DevDocs
freeCodeCamp
Searchable viewer that combines documentation for many languages and frameworks, with offline support.
ArtifactNo sign-up★ 39.6Kdeveloper tools
Details
- Auth
- No auth
- License
- License unknown
- First seen
- Oct 31, 2026
- Last checked
- Oct 31, 2026
- Source
- artifact-seed
More from ExtendsClass
- 0.562score
JSON Schema Validator and Generator
ExtendsClass
Validates JSON against a schema and can generate a schema from sample data.
ArtifactNo sign-updeveloper tools - 0.559score
Merge CSV Files
ExtendsClass
Combines several CSV files into one.
ArtifactNo sign-updata tools - 0.559score
SQL Validator
ExtendsClass
Checks SQL syntax and reports errors.
ArtifactNo sign-updeveloper tools - 0.559score
Kotlin to Java Converter
ExtendsClass
Translates Kotlin source into Java.
ArtifactNo sign-updeveloper tools - 0.559score
MySQL Online
ExtendsClass
Tests MySQL queries online without installing a database.
ArtifactNo sign-updeveloper tools - 0.559score
Unzip Files Online
ExtendsClass
Extracts zip, rar and tar archives in the browser.
ArtifactNo sign-upweb utilities
Cite this page
Online REST Client: free online tool. Agent Mart. https://agentmart.dev/artifacts/online-rest-client (last updated 2026-10-31)