Self-hosting is free forever — clone the repo, deploy it yourself, no fees, no limits from us. The hosted cloud (mydevtools.tech) is a paid service.

What is the difference between self-hosting and MyDevTools Cloud?

Self-hosting is the same codebase running on your own infrastructure — you own the data and pay nothing to us. MyDevTools Cloud is our managed service; it is a paid subscription that covers hosting, sync, and backups.

Sensitive data is encrypted in your browser before it reaches the server where supported. The server stores encrypted blobs for vault-style data instead of readable plaintext.

Do I need an account to use the tools?

Google Sign-In is required to save your data across sessions. Many public tool pages can be explored before opening the full app experience.

Is this truly open source?

Yes. Full source code is available on GitHub under the GPL-3.0 license. You can audit, contribute, fork, or self-host it.

Does it work offline?

Many tools are fully client-side and can work without server processing. Tools that connect to external services, sync data, or send API requests need a network connection.

Does API Client store or upload my data?

API Client is designed for browser-based use. Many MyDevTools utilities process data locally; tools that require sync or external connections may send only the data needed for that workflow.

Do I need to install anything to use API Client?

No installation required. API Client runs directly in your web browser — just open the link and start using it.

Network & API

Free Api Client OnlineAPI Client on MyDevTools

Free in-browser REST client: send GET/POST/PUT/PATCH/DELETE with custom headers, auth, and body — useful when someone asks for a “Postman alternative online” or “test my API without installing software”.

Use API Client Browse All Tools

About API Client

Test and debug HTTP requests with headers, body, and auth support. A lightweight Postman alternative in your browser. Runs entirely in your browser — no installation, no account required to try it.

Common API Client use cases

Use API Client when you need a fast, browser-based way to work with api client. It is useful during API debugging, code reviews, documentation cleanup, test data preparation, and quick checks on a new machine where you do not want to install a desktop app. Because MyDevTools keeps related utilities together, you can move from API Client into nearby tools like formatters, converters, generators, encoders, decoders, and API helpers without leaving the same toolkit.

Example workflow

A typical workflow starts by pasting or typing your input into API Client. Review the result, copy the cleaned or generated output, then continue with a related task such as validating a payload, decoding a token, parsing a URL, generating an identifier, or testing an API request. This makes API Client part of a practical developer workflow instead of a one-off utility page.

Key Features

API Client supports api client workflows for quick browser-based developer tasks.
API Client supports http client workflows for quick browser-based developer tasks.
API Client supports rest api tester workflows for quick browser-based developer tasks.
API Client supports debug api workflows for quick browser-based developer tasks.
API Client supports postman alternative workflows for quick browser-based developer tasks.
Runs in your browser — no install
Free to use, always

API Client FAQ

Is API Client free to use?

Yes. API Client is available through MyDevTools with a public landing page and browser-based app experience.

Do I need to install anything for API Client?

No. API Client runs in a web browser, so you can open it from any modern device without installing a desktop utility.

What is API Client best for?

What should I use with API Client?

Most developers pair API Client with related MyDevTools utilities such as formatters, parsers, encoders, generators, API tools, and security helpers.

How to Use API Client

01
Open the tool
Click "Use API Client Free" above — no download or account required.
02
Enter your data
Paste or type your input directly in the browser. Processing happens locally on your device.
03
Copy the result
Get your output instantly. Copy it, download it, or keep working in the same tab.

Open API Client

Related Network & API Tools

HTTP Status Codes ReferenceSearch and browse HTTP status codes (1xx–5xx) with short descriptions and RFC references.IP / Subnet CalculatorCompute IPv4 and IPv6 CIDR details: netmask, wildcard, broadcast, first and last host, and subnet size. Runs locally in your browser.MIME Type LookupLook up MIME types by file extension or filename and copy the result instantly. Runs entirely in your browser.User-Agent ParserPaste a User-Agent string to see browser, OS, engine, device, and CPU breakdown instantly. Runs entirely in your browser.

View all Network & API tools

API Client comparisons and alternatives

Online Postman AlternativeCompare MyDevTools as a lightweight online Postman alternative for quick API testing alongside JSON, JWT, URL, encoding, and generator tools.MyDevTools vs PostmanCompare MyDevTools with Postman for browser-based API testing, developer utilities, JSON formatting, JWT decoding, and lightweight request debugging.Online Insomnia AlternativeCompare MyDevTools with Insomnia for lightweight browser-based API testing and surrounding developer utilities.