Free Online Tools for
Developers & Creators
ToolHub is a collection of free, privacy-first web tools designed to help developers, content creators, and investors work smarter. Every tool runs directly in your browser — no sign-up, no data collection, no hidden fees.
We believe essential productivity tools should be accessible to everyone. That's why we built ToolHub — a growing suite of high-quality utilities you can trust.
Our Tools
YT Toolkit
Download YouTube thumbnails in all resolutions (up to 1280×720) and extract complete video metadata including titles, tags, descriptions, view counts, and SEO data. Supports all YouTube URL formats including Shorts, embeds, and mobile links.
Open Tool →DevTools Pro
Format, validate, and minify JSON, SQL, HTML, CSS, and XML code instantly. All processing happens client-side so your code never leaves your browser. Supports file uploads, keyboard shortcuts, and one-click downloads.
Open Tool →InvestCalc
Calculate stock profits, dollar-cost averages, and compound interest projections with interactive Chart.js visualizations. Includes year-by-year breakdowns, ROI calculations, and trading fee analysis for informed decision-making.
Open Tool →RunPace
All-in-one running toolkit with pace calculator, race predictor, training plan generator, weather-adaptive gear guide, and interactive course maps. Supports 5 languages with VDOT-based personalized training zones.
Open Tool →Why Choose ToolHub?
Privacy First
Your data stays on your device. We don't track, store, or sell any personal information or usage data.
Fast & Reliable
Client-side processing means instant results. No waiting for server responses or dealing with rate limits.
100% Free
No subscriptions, no premium tiers, no hidden costs. Every feature is available to everyone, forever.
Works Everywhere
Responsive design that works on desktop, tablet, and mobile. No app downloads or installations needed.
Guides & Resources
Learn how to get the most out of our tools with in-depth guides and tutorials.
Running for Beginners: Your Complete Couch to 5K Guide
Start running from scratch with a proven week-by-week program covering proper form, breathing, shoes, nutrition, and injury prevention.
DevelopmentREST API Design Best Practices for Modern Web Development
Learn how to design clean, maintainable APIs with proper resource naming, HTTP methods, status codes, versioning, and authentication.
FinanceBeginner's Guide to Stock Market Investing
Everything you need to know to start investing: stocks, ETFs, index funds, risk management, portfolio building, and common mistakes to avoid.
Frequently Asked Questions
What is ToolHub?
ToolHub is a free collection of online productivity tools built for developers, content creators, and investors. Our suite currently includes YT Toolkit (a YouTube thumbnail downloader and metadata extractor), DevTools Pro (a multi-language code formatter and validator), InvestCalc (an investment and compound interest calculator), and RunPace (an all-in-one running toolkit with pace calculators, training plans, and course maps). All tools are designed with privacy in mind — your data never leaves your browser.
Are the tools really free? What's the catch?
Yes, all tools are completely free with no limitations. We sustain the service through non-intrusive advertising. There are no premium tiers, no sign-up requirements, and no feature gates. We believe essential productivity tools should be accessible to everyone regardless of budget.
Is my data safe when using ToolHub?
Absolutely. DevTools Pro and InvestCalc process everything entirely in your browser using JavaScript — no data is ever sent to our servers. YT Toolkit communicates only with YouTube's official API to fetch publicly available video metadata. We don't collect personal information, don't use tracking cookies, and don't sell any data to third parties.
Do I need to create an account?
No. All ToolHub tools can be used immediately without any registration. Just open the tool and start using it. We intentionally avoided login systems to minimize data collection and reduce friction for our users.
Will you add more tools in the future?
Yes! We're actively developing new tools. Upcoming additions include a color palette generator, an image compression tool, a regex tester, and a Markdown editor. If you have suggestions for tools you'd like to see, please reach out to us through our contact page.