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free online text tools: word counter, case converter, regex, base64 encoder, URL encoder, and more. Fast, secure, browser-based. No signup required.

The modern platform for creating, sharing, and collaborating on AI prompts. Advanced version control and real-time testing.

Website, pricing, platforms and company facts side by side.
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| Website | freetextutils.com | diffyn.com |
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| Company | Startup from Cyprus · 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


FreeTextUtils is a free, private, browser-based toolkit with 30 text tools for writers, developers, and students. Features include word counter with reading time, case converter, regex find & replace, URL slug generator, base64 encoder/decoder, text reverser, duplicate remover, line sorter,...
No description of Diffyn yet.
What each product offers, as listed by its team.


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


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The Ultimate Prompt Tool for Creators – Visualize & Organize with Diffyn
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing FreeTextUtils and Diffyn.
FreeTextUtils's answer
The only free text toolkit that combines 30 tools with reading time estimation built directly into the word counter, all running entirely in your browser with zero server uploads. Dark and high-contrast themes ship as a first-class feature for accessibility, not an afterthought.
Diffyn's answer:
Addresses workflow and change management on LLM prompts, provide teams with traceability and visualization of tests across multiple models, provide deeper understading into efficiency of these prompts.
FreeTextUtils's answer
No signup, no ads interrupting your workflow, and no data ever leaves your device. Most competitors either send your text to a server, limit features behind paywalls, or require account creation. FreeTextUtils is genuinely free, genuinely private, and works offline.
Diffyn's answer:
Diffyn is the platform that specializes on both change management and multi-model analysis.
FreeTextUtils's answer
Vanilla HTML, CSS, and JavaScript — no frameworks, no dependencies. All processing runs client-side via native browser APIs. Static hosting ensures fast load times and zero server costs. JSON config files drive the tool catalog and guide registry.
Diffyn's answer:
React, Next.js, POSTGRESQL
FreeTextUtils's answer
Writers, SEO professionals, students, and developers who need quick text manipulation (word counting, regex, case conversion, slug generation) without the overhead of account creation or data privacy concerns.
Diffyn's answer:
Professionals incorporating LLMs or AI tools in their workflow and wants to keep track of changes and test their prompts.
FreeTextUtils's answer
Built out of frustration with online text tools that either required signup, uploaded data to unknown servers, or bombarded users with ads. The goal was a single, clean, private workspace where all common text operations live under one roof — no bouncing between five different sites to get work done.
Diffyn's answer:
I started working on Diffyn when I notice that prompting has become an essential part of work across many industries. While there are version control platofrms like github, they are not designed for just prompt management are can be overkill such applications, it is also not integrated natively with various LLMs and relevant tools for users to validate ideas and visualise results properly.
FreeTextUtils's answer
FreeTextUtils is a free public tool with no user tracking. It's used by freelance writers, SEO consultants, university students, and web developers worldwide who find it through organic search and word of mouth.
Share your experience with using FreeTextUtils and Diffyn. For example, how are they different and which one is better?
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