About Zendz Tools
Free online tools — no sign-up, no fees, no nonsense.
What is Zendz Tools?
Zendz Tools is a free, browser-based toolbox built for developers, SEO specialists, marketers, and designers. Every tool on this site runs entirely in your browser — no data is sent to any server, no account is required, and everything is completely free.
Why We Built This
As developers ourselves, we got tired of searching for simple utilities across dozens of different websites — each with ads, paywalls, or mandatory sign-ups. We built Zendz Tools to have everything in one place: clean, fast, and always available.
What We Offer
Sales & Marketing
UTM link builder, QR code generator, Google Ads and email subject line testers, email signature builder, and social-media helpers.
PDF Tools
Merge, split, organize, and rotate PDFs, convert images to PDF, PDF pages to images, and extract text — all in your browser.
Design & Image
Color converter, image editor, image optimizer, image-to-Base64 converter, and favicon generator.
Developer Tools
JSON formatter, Base64 encoder, URL encoder, hash generator, UUID generator, SQL formatter, and more.
SEO
Meta tag, Open Graph, Twitter Card and Schema Markup generators, SERP preview, robots.txt and XML sitemap builders.
Text & Writing
Word and frequency counters, readability scoring, find & replace, case conversion, line-break removal, ciphers, and a fancy text generator.
Calculators
Percentage, tip, loan and compound interest calculators, plus pricing and marketing metrics like margin, ROAS, CAC and LTV.
Privacy First
All tools run entirely client-side in your browser. We never collect, store, or transmit the data you enter into any tool. Your work stays on your device.
Get in Touch
Have a tool suggestion or found a bug? We'd love to hear from you. Send us an email or use the "Suggest a Tool" button on the homepage.
About the Developer
Zendz Tools is developed and maintained by Ren, an independent developer passionate about building useful, accessible tools for the web community.