Free online tools for developers, students, and professionals. JSON formatters, calculators, SEO tools, and more — all in one place.
Most popular tools used by thousands daily
Calculate GST amount and net/gross price for any GST rate instantly.
Generate SEO-optimized HTML meta tags for your web pages instantly.
Format, validate, and beautify JSON data instantly in your browser.
Calculate your Body Mass Index (BMI) and find your healthy weight range.
Count words, characters, sentences, and paragraphs in your text instantly.
Encode text or decode Base64 strings instantly online.
Calculate your exact age in years, months, and days from your date of birth.
Explore our curated collections of tools
Explore the best free AI-powered tools and resources for productivity, content creation, and automation.
Essential online tools for developers — formatters, encoders, converters, testers, and more.
Free online PDF tools to merge, split, compress, convert, and edit PDF files instantly.
Free online image tools for resizing, converting, compressing, and editing images.
Free online calculators for age, BMI, EMI, GST, percentage, and more everyday calculations.
Free SEO tools for meta tag generation, sitemap creation, keyword analysis, and website optimization.
Tips, tutorials & tech insights
Artificial intelligence is no longer reserved for tech giants. In 2025, a wide range of powerful AI tools are available completely free. Discover the ten best free AI tools you can start using today to boost productivity, creativity, and efficiency.
Every developer needs a solid toolkit to work efficiently. From JSON formatters to regex testers and timestamp converters, these 10 essential developer tools will save you hours every week. Best of all, they are available free online.
Built for everyone who values speed, privacy, and simplicity
Every tool on HideInfoTech is completely free to use — no subscriptions, no hidden fees, no paywalls. Ever.
Optimised for speed. Most tools run entirely in your browser — no waiting for server round-trips.
Your data stays on your device. We never store, log, or share your tool inputs. What you type, stays with you.
Fully responsive design. Use any tool seamlessly on your phone, tablet, or desktop — no app download needed.
Zero friction. Jump straight into the tools you need without creating an account or verifying your email.
We continuously add new tools and improve existing ones based on user feedback and the latest tech trends.