NS AscertainCreate Grow Repeat

Smart Tools. Clear Results.

NS Ascertain builds free, fast, browser-based tools for everyday tasks. No accounts. No installs. Just open and use.

Explore ToolkitsOpen Text Toolkit

About NS Ascertain

NS Ascertain is an independent project focused on building simple, useful tools that work instantly in your browser. No sign-up walls, no subscriptions, no bloat — just tools that do what they say.

Every tool on this site is free, private, and runs entirely client-side. Your data never leaves your device.

Our Toolkits

Three live toolkits — 57 free tools in total, all running in your browser.

Text Toolkit

16 tools · Live

Case conversion, text diff, regex testing, JWT decoding, Base64, JSON formatter, hashes, UUIDs, and more — all free, instant, and private.

Open Text Toolkit →

File Toolkit

31 tools · Live

PDF tools, image tools, color converter, CSS/HTML minifiers, and file conversion utilities — compress, convert, resize, and transform files entirely in your browser.

Open File Toolkit →

Calculator Toolkit

10 live tools · Live

EMI, GST, SIP, BMI, age calculator, unit conversion and more — free calculators for finance, health, and everyday use.

Open Calculator Toolkit →

What's inside each toolkit?

Inside Text Toolkit

16 free text tools — all browser-based:

  • Text Case Converter: camelCase, snake_case, kebab-case, Title Case
  • Text Compare: line-by-line diff with highlights
  • Regex & JWT: live pattern matcher & JWT decoder
  • Hashes & UUIDs: MD5, SHA-256, bulk v4 UUID generator
  • Base64 & JSON: encode/decode & JSON prettify/minify

Inside File Toolkit

31 free file tools — all browser-based:

  • PDF tools: merge, split, compress, PDF to Word, Word to PDF
  • Image tools: compress, resize, crop, convert formats, watermarks
  • Code & Utilities: CSS/HTML minifiers, color picker, QR code tools

Inside Calculator Toolkit

10 live calculators — all browser-based:

  • Finance: EMI, GST, SIP returns, Compound Interest
  • Health:BMI score & ideal weight range, Age calculator
  • Everyday: Percentages, Discounts, Tip bill splits, Unit converter

All processing happens locally in your browser — zero file or form data is ever uploaded to any server.

Why NS Ascertain?