
Reqbin
HTTPie
Hoppscotch
Postman
Free online toolkit for web developers: HTTP request tester with proxy support and redirect tracing, regex tester, JSON beautifier, diff checker, CSS/XPath selector tester and more.

WordCounter.net
CaseConverter.cc
Word Counter
SmallSEOTools
A.Tools
Convert Case Tool
ConvertCase.help
Instantly convert text to UPPERCASE, lowercase, Title Case, sentence case, and more - free, fast, and no sign-up required.

Which is more popular?
Based on our record, Convert Case seems to be more popular. It has been mentioned 49 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | parsistent.com | convertcase.net |
| Pricing | ||
| Company | 2026 | Startup from the United Kingdom · 1 - 9 employees · 2006 |
| Listed in |
In their own words, as submitted to SaaSHub.


Parsistent is a free online toolkit for web developers and scrapers. Key tool — HTTP Request Tester: - Built-in proxies (HTTP, SOCKS4, SOCKS5) — no need to bring your own - Anti-bot detection: Cloudflare, DataDome, PerimeterX - Redirect chain tracing - Custom headers and request body Other tools:...
Convert Case is a free, browser-based toolkit offering 100+ utilities for working with text, images, and code. No account, no install - just open a tool and get the job done. Text tools Reformat any text into your desired capitalization style instantly - UPPERCASE, lowercase, Title Case, sentence...
What each product offers, as listed by its team.


An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of Convert Case yet.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Parsistent and Convert Case.
Convert Case's answer:
Parsistent's answer
Built-in proxies (HTTP, SOCKS4, SOCKS5) are provided for free — no need to bring your own. The HTTP Request Tester automatically detects anti-bot systems (Cloudflare, DataDome, PerimeterX) and traces redirect chains. All tools work without signup.
Convert Case's answer:
Convert Case combines 100+ text, image, and code tools in one clean, distraction-free interface. Everything runs in the browser instantly, with no account, no installation, and no cost. It's built for speed - open it, use it, done.
Parsistent's answer
Unlike Reqbin or HTTPie, Parsistent provides free built-in proxies so you can test requests from different IPs instantly. It also detects anti-bot protection automatically and combines 8+ parsing tools in one place — no account needed
Convert Case's answer:
Most competitors focus on a single tool or clutter their interface with ads and upsells. Convert Case offers a full suite of 100+ utilities under one roof, completely free, with a consistent and intuitive experience across every tool.
Parsistent's answer
Web developers and data engineers who build scrapers, test APIs, or debug HTTP requests. Also useful for QA engineers testing geo-restricted content and developers learning CSS selectors or XPath.
Convert Case's answer:
Anyone who works with text, images, or code regularly - writers, bloggers, developers, students, marketers, and content creators. If you've ever manually retyped text just to change its formatting, Convert Case was built for you.
Parsistent's answer
Built by a solo developer who needed a single place to test proxies, inspect HTTP responses, and debug CSS selectors while building scrapers. All existing tools required accounts or didn't support proxies natively.
Convert Case's answer:
Convert Case started in 2006 as a simple text case converter and grew organically into a full toolkit as users asked for more utilities. The goal has always been the same: give people fast, reliable tools without the friction of sign-ups, paywalls, or bloated interfaces.
Parsistent's answer
Next.js 16, TypeScript, Tailwind CSS, Vercel (hosting). Server-side proxy support via https-proxy-agent and socks-proxy-agent.
Convert Case's answer:
Convert Case is built with PHP and modern web technologies, with all processing handled client-side in the browser where possible to keep things fast and private.
Share your experience with using Parsistent and Convert Case. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking Parsistent since May 2026.
Hi HN, Simple online tools on the web have become unnecessary greedy. For example, * https://jsonformatter.org/ displays 7 ads on page load * https://convertcase.net/ had 4 ads plus a Google Vignette. And many more sites do the same... - Source: Hacker News / over 2 years ago
Even YC VCs don't understand that founders who take investment still have to shift their goal from "making a great product" to "exponentially growing their product" which in most cases is at odds with just "making a great product"... - Source: Hacker News / almost 3 years ago
Https://convertcase.net/ - Approx $20k/month. Been going for years and keep on building on it. - Source: Hacker News / almost 3 years ago
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Count words, sentences, paragraphs etc.
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CLI HTTP that will make you smile. JSON support, syntax highlighting, wget-like downloads, extensions, and more.
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Case Converter is a free, open-source online tool for converting text to lowercase, uppercase, title case, capital case, or sentence case.
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A simple, beautiful word and character counter
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