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IT Tools
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CodeSwissKnife
JSONFormatter.org
JSONLint
A.Tools
A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.

Omni Calculator
IT Tools
10015.io
Financial Toolbelt
Free tools, calculators, directories, and reference data for indie hackers, solo developers, and digital creators.

Which is more popular?
Based on our record, DevToys seems to be more popular. It has been mentioned 16 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | devtoys.app | stack127.com |
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| Platforms | — | |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of DevToys yet.
stack127 is a toolbox and reference hub for indie hackers, solo developers, and digital creators who build and run projects online. Use its free tools to calculate SaaS metrics such as MRR and churn, estimate Amazon KDP royalties, check domains and DNS, and plan hosting and storage. Its...
What each product offers, as listed by its team.


Possible disadvantages
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 stack127 yet.
Walkthroughs and reviews on video.
DevToys - Review and How to Install | The Swiss Army Knife for Developers
More videos
No stack127 videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing DevToys and stack127.
stack127's answer:
Indie hackers, solo developers, and digital creators who build and run projects online.
stack127's answer:
stack127 brings SaaS metrics, Amazon KDP calculations, platform fees, domains, DNS, hosting, and software directories together for indie hackers, solo developers, and digital creators.
stack127's answer:
Use stack127 for free tools and references across practical project work, including SaaS metrics, Amazon KDP royalties, platform fees, domains, DNS, hosting, and software discovery. Most tools are open source through stack127labs on GitHub.
stack127's answer:
I built stack127 while working on my own projects. I kept needing practical tools and clear references for the same questions: SaaS metrics, Amazon KDP royalties, domain records, storage, and platform fees. stack127 brings those tools and resources together so other indie hackers, solo developers, and digital creators can use them too. Most of the tools are open source through stack127labs on GitHub.
stack127's answer:
Next.js, React and TypeScript, with PostgreSQL through Supabase. The static frontend runs on Cloudflare, and the API runs in Docker on OVH.
Share your experience with using DevToys and stack127. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


There are lots of these, but this is the first that I've seen that focused on frontend dev a bit more. I've saved it to my list of tools for reference. Here's another with a more local / backend / IT flavor: https://it-tools.tech I have... - Source: Hacker News / 9 months ago
Think of DevToys as the developer equivalent of a multi-tool. It’s a desktop app with dozens of handy utilities. - Source: dev.to / about 1 year ago
Devtoys is great and open-source and .NET and cross-platform * https://devtoys.app/ and in context to the thread files-community/files is great and open-source and .NET and cross-platform * https://files.community/. - Source: Hacker News / almost 2 years ago
Tracking stack127 since Oct 2026.
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