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

Two live toolkits — 34 free tools in total, all running in your browser.

Text Toolkit

8 tools · Live

Case conversion, text diff, find & replace, Base64, JSON formatter, Lorem Ipsum, URL encoder, and password generator — all free, instant, and private.

Open Text Toolkit →

File Toolkit

26 tools · Live

PDF tools, image tools, and file conversion utilities — compress, convert, resize, and transform files entirely in your browser. No uploads to any server.

Open File Toolkit →

What's inside each toolkit?

Inside Text Toolkit

8 free text tools — all browser-based:

  • Text Case Converter: UPPERCASE, lowercase, camelCase, snake_case, kebab-case, PascalCase, Title Case
  • Text Compare: line-by-line diff with change highlights
  • Find & Replace: regex support, replace-first or all
  • Lorem Ipsum Generator: custom paragraph count and length
  • Base64 Encoder/Decoder: encode and decode instantly
  • JSON Formatter: prettify, validate, and minify JSON
  • URL Encoder/Decoder: encode query parameters safely
  • Password Generator: strong random passwords

Inside File Toolkit

26 free file tools — all browser-based:

  • PDF tools: merge, split, compress, reorder pages
  • Image tools: compress, resize, crop, convert formats
  • File conversion: convert between common file formats

All processing happens in your browser — nothing is uploaded to any server.

Why NS Ascertain?