
CyberChef
DevUtilX
Diff Checker
JSONLint
CodeSwissKnife
DevCrate
DevNestTools
100% offline, privacy-first developer utilities. 15 daily tools in one tab with ⌘K command palette.

CyberChef
IT Tools
CodeSwissKnife
JSONFormatter.org
10015.io
JSONLint
A.Tools
A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.

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 | devarmory.org | devtoys.app |
| Pricing | — | |
| Company | Startup from the United States · 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


DevArmory is an offline-ready, privacy-first developer utility suite designed to replace scattered bookmarks with a single, high-performance workspace. Unlike traditional online formatters that quietly upload user inputs to remote backends, DevArmory operates 100% in local browser memory. Your...
No description of DevToys yet.
What each product offers, as listed by its team.


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


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


As answered by people managing DevArmory.org and DevToys.
DevArmory.org's answer
DevArmory is 100% client-side and offline-first. All parsing, code diffing, formatting, and JWT decoding execute purely in local browser memory using modern Web APIs. No user data, proprietary code, or API tokens are ever transmitted to or stored on a remote server.
DevArmory.org's answer
Unlike bloated, ad-cluttered online formatters that upload code to unknown servers or charge recurring subscriptions, DevArmory is completely free, lightning-fast, and privacy-first. It includes a built-in ⌘K command palette, PWA offline capability, and client-side team sharing links.
DevArmory.org's answer
Software engineers, web developers, DevOps professionals, QA testers, and digital creators who need fast, daily utilities without security or compliance risks.
DevArmory.org's answer
DevArmory was built out of frustration with sketchy online formatters that log user payloads to remote backends. When dealing with customer PII, internal SQL queries, and API authorization tokens, sending code to third parties is a major security hazard. DevArmory was created to give engineers an everyday armory that guarantees complete client-side privacy.
DevArmory.org's answer
HTML5, Modern CSS3, Vanilla JavaScript (ES6+), Web Workers, Service Workers (PWA), and native browser Web APIs (crypto.subtle, Canvas, LocalStorage).
DevArmory.org's answer
Share your experience with using DevArmory.org and DevToys. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking DevArmory.org since Nov 2026.
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 / 10 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
When comparing DevArmory.org and DevToys, you can also consider the following products.


100+ free online tools for developers - code formatters, converters, validators, and more. Work instantly in your browser.
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IT Tools is a free and open-source collection of handy online tools for developers & people working in IT.
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Diff Checker is a free online diff tool that quickly and easily gives you the text differences...
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Feature-packed developer toolkit. Includes text conversion, encoding, UUID generation, cryptography, color conversion, JSON/XML formatting, and more for simplified, efficient development tasks without online data transmission.
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JSON Lint is a web based validator and reformatter for JSON, a lightweight data-interchange format.
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