Software Alternatives, Accelerators & Startups

DomainLockJS VS DevToolKit.site

Compare DomainLockJS VS DevToolKit.site and see what are their differences

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DomainLockJS logo DomainLockJS

Free code snippet to lock javascript files to your domain. Protect javascript code. Easy cut & paste script. Prevent unauthorized use of your scripts and deter code theft.

DevToolKit.site logo DevToolKit.site

19 free browser-based developer tools โ€” no signup, no tracking, everything runs client-side.
  • DomainLockJS Landing page
    Landing page //
    2021-10-02
  • DevToolKit.site Landing page
    Landing page //
    2026-02-14

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 Converter, SQL Formatter, Base64 Encoder/Decoder (text + file drag & drop), URL Encoder, JWT Decoder, Hash Generator (SHA-1/256/384/512 via Web Crypto API), Password Generator, Cron Expression Parser with next run time calculation, PostgreSQL Config Generator (free PGTune alternative), UUID v4 Generator, QR Code Generator (PNG + SVG), Lorem Ipsum Generator, Regex Tester, Text Diff Checker, Unix Timestamp Converter, Color Converter (HEX/RGB/HSL), and HTTP Status Codes Reference. Every tool processes data locally using native browser APIs. No server-side processing, no cookies, no analytics tracking of input data.

DomainLockJS features and specs

  • Easy Implementation
    DomainLockJS provides a simple and straightforward setup process, making it easy for developers to integrate domain protection into their projects.
  • Customizable Restrictions
    The tool allows developers to specify which domains are authorized to access their code, providing flexibility in security configurations.
  • Obfuscation
    DomainLockJS includes obfuscation features that help protect JavaScript code from being easily understood and reverse-engineered.
  • Automated Blocking
    The script can automatically detect unauthorized domains attempting to access coded assets and restrict their access, enhancing security without manual intervention.

Possible disadvantages of DomainLockJS

  • Limited to JavaScript
    As a JavaScript-based solution, DomainLockJS is only applicable to web applications and not suitable for server-side or non-web applications.
  • Bypass Potential
    Despite obfuscation, determined attackers with sufficient expertise might still find ways to bypass domain restrictions, necessitating additional security measures.
  • Performance Overheads
    Adding an additional layer of security through DomainLockJS might introduce some performance overhead, potentially affecting the speed of web applications.
  • Dependency on JavaScript Execution
    Since DomainLockJS operates in the browser, its effectiveness depends on JavaScript being enabled and executed correctly on the client side.

DevToolKit.site features and specs

  • 100% Client-Side
    no data sent to any server
  • 19 Tools in One Place
    no jumping between sites
  • No Signup Required
    open and use instantly
  • Web Crypto API
    hardware-accelerated hashing and password generation
  • SEO-Optimized Tool Pages
    each tool has its own URL with metadata
  • Mobile Responsive
    works on phone and tablet
  • Dark Theme
    easy on the eyes for long coding sessions
  • PostgreSQL Config Generator
    free PGTune alternative
  • Cron Parser
    shows next 10 actual execution times
  • JSON Tree Viewer
    collapsible tree with click-to-copy node paths

Category Popularity

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0% 0
Developer Tools
0 0%
100% 100
Web Application Bundler
100 100%
0% 0
Text Tools
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Questions & Answers

As answered by people managing DomainLockJS and DevToolKit.site.

Why should a person choose your product over its competitors?

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 โ€” each with a clean, focused UI for a single task. Unlike DevToys, it works on any device with a browser โ€” 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 โ€” no data is ever sent to a server, which matters if you're working with production JWTs, API keys, or database configs.

How would you describe the primary audience of your product?

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.

What's the story behind your product?

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 โ€” 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.

Which are the primary technologies used for building your product?

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 โ€” zero external crypto libraries. FileReader API for client-side Base64 file encoding. All tools are React components with no backend โ€” 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.

Who are some of the biggest customers of your product?

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.

What makes your product unique?

DevToolKit.site's answer:

Three things set DevToolKit apart. First, it includes tools you won't find in other online toolkits โ€” 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 โ€” hashing runs through Web Crypto API with hardware acceleration, passwords use crypto.getRandomValues(), file encoding uses FileReader โ€” 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 โ€” no navigating through menus or loading tools you don't need.

User comments

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What are some alternatives?

When comparing DomainLockJS and DevToolKit.site, you can also consider the following products

JavaScript Obfuscator - JavaScript Obfuscator is a free online tool that obfuscates your source code, preventing it from being stolen and used without permission.

DuskTools.app - 150+ free browser-based developer tools - no sign-up, no tracking, no backend. JSON formatter, Base64 encoder, regex tester, JWT decoder, UUID generator, HTTP status lookup, MIME types, port reference, cron builder & more. Everything runs locally in

Terser - JavaScript parser, mangler, optimizer and beautifier toolkit for ES6+

DevToys - A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.

UglifyJS - JavaScript minifier, beautifier, mangler and parser toolkit.

CodeUtil.dev - Fast, private developer tools in your browser. JSON formatter, Regex tester, Cron generator, and 17 more.