
CodeTray.dev
DevsBox
DevToolKit.site
FreeToolkit
WebToolKit.tech
Webtools.takendrabam.com.np
29 free browser-based developer tools — JWT, regex, cron, timestamp converters, CSS generators, security checkers, and content generators. No sign-up required.

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

Which is more popular?
Based on our record, SamToolkit seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | samtoolkit.com | devarmory.org |
| Pricing | — | |
| Platforms | — | |
| Company | 2026 | Startup from the United States · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


SamToolkit is a free collection of 29 small, focused developer utilities across 7 categories — converters, debuggers, generators and reference tools. Everything runs client-side in your browser, so nothing you paste or type is ever sent to a server. There is no account, no sign-up and no paywall,...
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...
What each product offers, as listed by its team.


How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing SamToolkit and DevArmory.org.
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 SamToolkit and DevArmory.org. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


So I built my own PDF Merge and PDF Split tools on SamToolkit. They're free for 10 pages a day, and if you need more, you can buy a $5 weekly pass: a one-time payment that never renews automatically, so there's no subscription to forget... - Source: dev.to / 12 days ago
Tracking DevArmory.org since Nov 2026.
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Fast, free developer tools. JSON formatter, Base64, JWT, Regex and more. Runs 100% in your browser.
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Developer tools: JSON/JWT/base64, hash, regex tester, UUID, cron, timestamp, color.
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100+ free online tools for developers - code formatters, converters, validators, and more. Work instantly in your browser.
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19 free browser-based developer tools — no signup, no tracking, everything runs client-side.
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Diff Checker is a free online diff tool that quickly and easily gives you the text differences...
Compare Diff Checker to SamToolkit or DevArmory.org: