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35+ free online developer tools including JSON Formatter, Password Generator, URL Encoder, Base64 Encoder, QR Code Generator and more. No signup required, runs entirely in your browser.

React Admin Dashboard Template with Java Backend

Website, pricing, platforms and company facts side by side.
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| Website | toolsparkr.com | flatlogic.com |
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| Company | Startup from Pakistan · 1 - 9 employees · 2026 | — |
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In their own words, as submitted to SaaSHub.


ToolSparkr is a free collection of 35+ online developer tools designed to save time and simplify everyday tasks for developers, students, and IT professionals. Tools Available Developer Tools: JSON Formatter & Validator, URL Encoder/Decoder, Base64 Encoder/Decoder, HTML/CSS/JS Minifier,...
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As answered by people managing ToolSparkr and Sing App React Java.
ToolSparkr's answer
PHP 8, MySQL, Apache, JavaScript, Bootstrap CSS, Cloudflare CDN, Let's Encrypt SSL, Google Analytics 4, and hosted on DigitalOcean.
ToolSparkr's answer
ToolSparkr's answer
ToolSparkr offers 35+ free online tools in one place all running directly in your browser with zero signup required. Unlike competitors who focus on just one category, ToolSparkr covers developer tools, security/hashing, generators, converters, and network utilities. Every tool page includes educational content explaining how and why to use it, making it useful for both experienced developers and students learning the basics.
ToolSparkr's answer
No signup or registration needed just open and use. All tools are completely free with no hidden limits. The site loads fast with perfect 100/100 PageSpeed scores on both mobile and desktop. Each tool includes detailed guides, FAQs, and code examples that competitors like FreeFormatter and RapidTables don't offer. Privacy-focused your data stays in your browser.
ToolSparkr's answer
Web developers, software engineers, computer science students, and IT professionals who need quick access to everyday utilities like JSON formatting, URL encoding, password generation, hash generation, and DNS lookups without installing software or creating accounts.
ToolSparkr's answer
I got frustrated with existing online tool sites they were either full of intrusive ads, required signups, or lacked proper explanations of what the tools actually do. So I built ToolSparkr as a solo developer to create a clean, fast, and educational alternative. Every tool comes with guides and code examples because I believe developers deserve tools that teach, not just execute.
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