Online Tool Store Online Tool Store

No sign-up · 100% free · Ad-free

Free tools that run entirely in your browser

PDF, image, and text tools that just work — pick one below and get your result in seconds, entirely on your device.

Browse all tools Why it's private
Free tools
2,666+
Free tools
Categories
45
Categories
Guides
2,474+
Guides

Updated

What is Online Tool Store?

A single home for 2666+ small, single-purpose web tools — PDF and image utilities, unit converters, calculators, text formatters, developer helpers, and more — that run as plain JavaScript inside your browser tab.

There's no app to install and no account to create. Each tool does one job well, so you can find exactly what you need instead of digging through a bloated all-in-one app.

Who it's for

  • Developers — JSON, regex, hashing, and encoding tools (247)
  • Students & writers — word counts, citations, and text cleanup (169)
  • Finance-minded — loan, budgeting, and investment calculators (184)
  • Everyday health checks — BMI, calorie, and other wellness calculators (160)
  • Marketers & SEOs — schema, meta tag, and technical SEO utilities (115)
  • Anyone with a quick task — unit converters, generators, and calculators (107)

How it works

  1. Pick a tool

    Search or browse by category — every tool is one click from the homepage or the full list.

  2. Use it right in your browser

    No install, no plugin, no sign-up. Type, paste, or upload a file and the tool runs immediately.

  3. Get your result instantly

    Everything runs as JavaScript on your device, so there's no upload, no queue, and no server to wait on.

Why it's different

No catches, just tools

Private by design

Every file is processed locally in your browser. Nothing is ever uploaded to a server.

Instant, every time

No queue, no processing server to wait on — results appear the moment you click.

Free, no account

No sign-up, no paywalls, no watermarks. Open a tool and start using it.

Browse by category

45 categories, 2666+ tools

Developer

247

Formatters, converters, generators, and debugging utilities for everyday coding tasks — JSON, regex, cron, hashes, and more.

Productivity

231

Timers, planners, checklists, and quick utilities to keep your day organized without installing another app.

Math & Science

197

Calculators and converters for algebra, statistics, physics, and everyday science questions.

Finance Calculators

184

Loan, mortgage, investment, and budgeting calculators to run the numbers before you commit.

Text & Writing

169

Word counters, case converters, formatters, and editing helpers for cleaner writing, faster.

Health & Fitness

160

BMI, calorie, heart-rate, and other wellness calculators grounded in common medical formulas.

Image

144

Resize, compress, convert, and edit images — every pixel processed on your device, nothing uploaded.

SEO & Web

115

Schema generators, meta tag checkers, and technical SEO utilities for sites of any size.

View all categories

Popular tools

Trending in search

Tools people are finding — and clicking — most right now.

Conspiracy Board Maker

Connect photos and clues with red string, then export your board

Fortune Cookie Generator

Themed fortunes, lucky numbers, daily cookie

Dot-Matrix Text Generator

Make retro LED dot-matrix text as a PNG

Idempotency Key Generator

Generate UUID v4/v7 keys with copyable API request examples

Just launched

Recently added tools

New

Bulk Image Naming Tool

Generate numbered names for image batches
New

Social Media Safe Zone Checker

Check TikTok, Facebook, Instagram & Shorts safe zones
New

Before/After Image Slider Generator

Create draggable before-and-after comparisons

From the blog

Latest guides

How to Add a Browser Frame to a Website Screenshot

🖥️ Design & Color

How to Add a Browser Frame to a Website Screenshot

Add a browser frame to a website screenshot with your own address bar text, a gradient background and a soft shadow, then export a sharp PNG. No upload needed.

How to Add Arrows and Numbered Steps to a Screenshot

✏️ Image Tools

How to Add Arrows and Numbered Steps to a Screenshot

Annotate a screenshot online with arrows, boxes, highlights, numbered steps and labels, pixelate private details, then export a full-size PNG with no upload.

How to Check Your CSS Spacing Against an 8px Grid

📐 Design & Color

How to Check Your CSS Spacing Against an 8px Grid

Check CSS spacing against a 4px or 8px grid: find every off-grid margin, padding and gap, get the nearest on-grid value, and copy corrected CSS in your browser.

View all guides

FAQ

Frequently asked questions

Is Online Tool Store really free to use?
Yes. Every tool is 100% free with no sign-up, no paywalls, no watermarks, and no usage limits.
Do I need to create an account?
No. Open any tool page and start using it immediately — no email, no login, no account required.
Is it safe to use these tools on sensitive files?
Yes. Every tool runs entirely in your browser using client-side JavaScript. Files are processed on your device and are never uploaded to a server.
How many tools are available?
2666+ free tools across 45 categories, spanning PDF, image, text, developer, finance, and more.
Which browsers work with these tools?
Any modern browser — Chrome, Firefox, Safari, or Edge — with JavaScript enabled. No installs or extensions needed.
Do you add new tools regularly?
Yes. New tools are added on an ongoing basis — see "Just launched" below for the most recent additions.

Ready to get started?

2666+ free tools, zero uploads, zero sign-up. Find the one you need and use it right now.

Browse all tools