
Coverity Scan
Veracode
SonarQube
Appknox
Acunetix Vulnerability Scanner
Netsparker
Snyk
The industry’s most comprehensive AppSec platform, Checkmarx One is fast, accurate, and accelerates your business.

DuskTools.app
DevToys
CyberChef
Orbilyra
SamToolkit
SmallDevTools
CodeTray.dev
19 free browser-based developer tools — no signup, no tracking, everything runs client-side.

Which is more popular?
Based on our record, Checkmarx seems to be more popular. It has been mentioned 5 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | checkmarx.com | devtoolkit.site |
| Pricing | — | |
| Company | — | 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Checkmarx yet.
DevToolKit is a collection of 19 free online developer tools that run entirely in the browser. No backend, no signup, no data ever leaves your machine. Built with Next.js 14 and Tailwind CSS. Tools include: JSON Formatter & Validator, JSON Tree Viewer with node path copying, YAML-JSON...
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
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Viewing results and understanding security issues via Checkmarx online scanner
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Checkmarx and DevToolKit.site.
DevToolKit.site's answer:
DevToolKit runs 100% in the browser with zero signup. Unlike CyberChef, which has a steep learning curve with its recipe-based interface, DevToolKit gives you 19 standalone tools — each with a clean, focused UI for a single task. Unlike DevToys, it works on any device with a browser — no desktop app installation needed. And unlike SmallDevTools or similar online toolkits, DevToolKit includes unique tools like a PostgreSQL Config Generator (a free PGTune alternative), a Cron Expression Parser that calculates next 10 actual run times, and a JSON Tree Viewer with click-to-copy node paths. Every tool uses native browser APIs like Web Crypto for hashing — no data is ever sent to a server, which matters if you're working with production JWTs, API keys, or database configs.
DevToolKit.site's answer:
Backend and full-stack developers who deal with JSON, JWTs, SQL, cron jobs, and PostgreSQL configuration on a daily basis. DevOps engineers who need quick encoding, hashing, or regex testing without installing CLI tools. Developers who care about data privacy and don't want to paste production tokens or API responses into random websites that may log input data.
DevToolKit.site's answer:
I'm a backend developer with 10+ years of experience in Python and Go, working on distributed systems and microservices. Every day I was jumping between 5-6 different sites to format JSON, decode a JWT, test a regex, or convert a timestamp — each one bloated with ads, cookie banners, and signup walls. One evening I decided to build all the tools I actually use into a single place where everything runs client-side. The first version had 15 tools and took a weekend to build with Next.js and Tailwind CSS. After getting feedback, I added a PostgreSQL Config Generator (because PGTune hasn't been updated in years), a JSON Tree Viewer, and an HTTP Status Code Reference. It's now at 19 tools and growing based on what developers ask for.
DevToolKit.site's answer:
Next.js 14 with App Router for server-side rendering and per-page SEO metadata. Tailwind CSS for styling with a custom dark theme. Web Crypto API (crypto.subtle) for SHA-1/256/384/512 hashing and cryptographically secure password generation — zero external crypto libraries. FileReader API for client-side Base64 file encoding. All tools are React components with no backend — the entire app is static and deployed on Vercel. Each tool is a separate route with its own metadata, canonical URL, and sitemap entry for independent Google indexing.
DevToolKit.site's answer:
DevToolKit is a free tool with no accounts, so we don't track individual users. It's used by individual developers and small teams who need quick, private access to common dev utilities without enterprise overhead. The tool is designed for anyone who works with APIs, databases, or web development and wants a fast, ad-free, privacy-respecting alternative to existing online tools.
DevToolKit.site's answer:
Three things set DevToolKit apart. First, it includes tools you won't find in other online toolkits — a PostgreSQL Config Generator that replaces PGTune with hardware-aware tuning calculations, a Cron Expression Parser that doesn't just describe the schedule but calculates the next 10 actual execution timestamps, and a JSON Tree Viewer where you click any node to copy its full JavaScript path like data.users[0].email. Second, every tool uses native browser APIs instead of external libraries — hashing runs through Web Crypto API with hardware acceleration, passwords use crypto.getRandomValues(), file encoding uses FileReader — meaning zero dependencies and zero data transmission. Third, each of the 19 tools lives on its own URL with dedicated SEO metadata, so you can bookmark devtoolkit.site/jwt-decoder/ and go straight to it — no navigating through menus or loading tools you don't need.
Share your experience with using Checkmarx and DevToolKit.site. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Why We Picked Checkmarx SAST: We like Checkmarx SAST for its early detection of vulnerabilities, which enables faster and safer code development. Its AI-assisted prioritization of vulnerabilities according to severity...
Checkmarx is a developer-centric security tool that specializes in secure coding practices and compliance. It helps developers identify and fix security vulnerabilities in their code, ensuring that their applications...
While SonarQube offers some security features, Checkmarx provides a more holistic approach to application security, covering a more comprehensive range of security aspects throughout the SDLC. Checkmarx One's...
We have no reviews of DevToolKit.site yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


It works, and it's SQL injection. Semgrep Code catches it with the engine you already run for architecture (add --config p/owasp-top-ten). CodeQL is free for public repos and shows results in the PR. Snyk Code and Checkmarx cover the... - Source: dev.to / 11 days ago
Tools like OWASP ZAP are excellent for dynamic application security testing, while SonarQube and Checkmarx specialize in static security testing. These tools integrate seamlessly into your pipeline, automating checks and enabling you to... - Source: dev.to / about 1 year ago
Tools like SonarQube, Checkmarx, or Snyk can automate parts of this process by scanning for known vulnerability patterns. While white box testing may not reflect real-world attack scenarios (as attackers rarely access source code), it... - Source: dev.to / over 1 year ago
Tracking DevToolKit.site since Feb 2026.
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