Dev tools · alternatives · 2026
24 alternatives to Responsecodes.xyz
responsecodes.xyz returns response status codes based on the subdomain. https://222.responsecodes.xyz returns a response with a status code of 222. https://999.responsecodes.xyz returns a response with a status code of 999. Non-numeric subdomains will return a 400. I built this because I needed it and I couldn't find one after searching around for a few minutes.
Responsecodes.xyz is a testing utility that returns HTTP response status codes based on the subdomain entered. Users can access any numeric status code by using it as a subdomain (for example, 222.responsecodes.xyz… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Responsecodes.xyz launched in 2022; newer entries below may have overtaken it.
- 1
Code.xyz▲378The online code editor for building APIs in a single click.
2018 · namekeeper.com · its alternatives →
- 2
Highlight.xyz▲282Build an NFT membership community w/ real utility & no code
2022 · highlight.xyz · its alternatives →
- 3SE
I recently wanted to test how a part of a web app responded to a 502 HTTP status code from a remote site from which it was pulling data. When I came to test it, the remote site was working fine, but I still wanted the 502. So I created statuscoder, just append your desired status code to the URL and it'll respond with that code. http://statuscoder.com It's my first single-use project and I like its simplicity - it does one job and (hopefully) does it well. Is there anything else that you'd want to see it do?
2012 · statuscoder.com · its alternatives →
- 4
Hypertext Transfer Protocol Response status codes, and dogs
2021 · httpstatusdogs.com · its alternatives →
- 5
Test how your code reacts to varying HTTP responses
2023 · http.codes · its alternatives →
- 6AW
2019 · statuses.now.sh · its alternatives →
- 7
http.garden▲74Gardening for every HyperText Transfer Protocol status code
2023 · http.garden · its alternatives →
- 8
zero.xyz▲335Give your AI agent access to ~8k tools, APIs and services
May 2026 · zero.xyz · its alternatives →
- 9
A 10-question quiz to learn HTTP status codes the fast way
Jun 2026 · jsondevtools.org · its alternatives →
- 10MW
I wanted QR codes to be really simple to implement everywhere and for everyone. So I spent some time on my weekends trying to write a fast QR generator module for Apache, and here are the results: ab -n 5000 -c 100 http://lilqr.com/qr Requests per second: 4301.78 [#/sec] (mean)
2011 · lilqr.com · its alternatives →
- 11
Want to familiarize yourself with some common website development terms? Use our web development glossary to find what you’re looking for!
2012 · httpstatus.es · its alternatives →
- 12
- 13
Test URLs in bulk for their HTTP responses, by ex-Google
2022 · http.app · its alternatives →
- 14
check status codes, response headers & redirect chains
2020 · httpstatus.io · its alternatives →
- 15BX
2018 · bobthewebdev.xyz · its alternatives →
- 16
Find a job or a developer with Golang skills
2021 · golangjob.xyz · its alternatives →
- 17
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Hi HN -- I built HTTP:COLON, a small, open-source web tool for quickly checking a site’s HTTP response headers and learning what they mean as you go. Link: https://httpcolon.dev/ What it does - Enter a URL and fetch its response headers - Groups common headers into handy buckets (cache, content, security) - Includes short docs/tooltips for headers and directives so you can look things up while debugging. I find hovering on highlighted headers quite useful! Supports different HTTP methods (GET/POST/PUT/DELETE) Deep links - You can link directly to a host,…
Jan 2026 · httpcolon.dev · its alternatives →
- 19
To understand the meaning of an HTTP status code and list all codes belonging to a specific class from your terminal.
2022 · github.com · its alternatives →
- 20
- 21
- 22HS
2018 · status.icu · its alternatives →
- 23
Domain name for Coders/ Developers
Jan 2026 · forsale.dynadot.com · its alternatives →
- 24
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →