YantraKosha
Free Online Tools, Calculators, PDF Tools & QR Generator
573 browser-based tools across 56 kits and 88 categories, including calculators, PDF tools, QR codes, barcodes, developer utilities, unit converters, and finance tools.
Runs in your browser
Fast, installation-free tools that open instantly on desktop and mobile.
No sign-up required
Users can start immediately without creating accounts or hitting paywalls.
Privacy-first by default
Many tools keep processing local so sensitive work stays close to the user.
Premium free experience
Thoughtful navigation, polished UI, and focused workflows across the product.
Featured Tools
Popular tools loved by thousands of users
Start from your goal, not just a category
Pick a workflow that matches what you are trying to get done right now.
For students
Citations, calculators, flashcards, and writing tools in one focused flow.
For developers
Format, generate, test, and inspect code without leaving the browser.
For documents
Move faster through PDF, file, OCR, and content workflows.
For creators
Design, image, color, and branding tools that work well together.
For job seekers
Build resumes, improve writing, and sharpen interview prep in UdyogaPatra.
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