Local runtime · online

Free online tools that never upload your files.

PDF, image, text, QR and developer utilities that run 100% in your browser. No upload, no sign-up, nothing to install.

Built by one indie maker who got tired of uploading private files to random websites. Read the story.

70+

Tools available

Bytes uploaded

Accounts needed

Index11

Browse by category

Jump straight to a category hub.

Image Conversions13 pages

Resize Presets14 pages

Unit Conversions31 pages

QR Code Use Cases11 pages

Catalogue41

Explore all tools

Hand-crafted utilities you'll actually use.

View all

PDF Tools

PDF Merger

Combine multiple PDF files into one — in your browser.

PDF Tools

PDF Splitter

Split a PDF into individual pages or extract a range.

PDF Compressor

Reduce PDF file size right in your browser.

PDF to Image

Convert PDF pages to PNG or JPG images.

Rotate PDF

Rotate PDF pages 90°, 180°, or 270° in your browser.

Image to PDF

Turn one or more images into a single PDF document.

Image Tools

Image Compressor

Shrink images in your browser — you control the quality.

Image Tools

Image Resizer

Resize images to any dimensions, right in your browser.

Crop Image

Crop images to any size with aspect-ratio presets.

Image Converter

Convert images between JPG, PNG, and WebP in your browser.

Favicon Generator

Generate favicon sizes from any image, bundled as a ZIP.

Color Picker from Image

Click any pixel in an image to get its HEX and RGB color.

Color Picker

Pick a color and copy HEX, RGB, or HSL values.

YouTube Thumbnail Downloader

Download YouTube video thumbnails in every available resolution.

Text Tools

Word Counter

Live word, character, and reading-time stats.

Text Tools

Case Converter

Convert text to upper, lower, title, sentence, camel & more.

Lorem Ipsum Generator

Generate placeholder paragraphs, sentences, or words.

Text to Slug

Turn any text into a clean, URL-friendly slug.

Remove Line Breaks

Strip line breaks or clean up extra blank lines.

Reverse Text

Reverse characters, words, or flip lines of text.

Find and Replace

Find and replace text with case and whole-word options.

Calculators

Age Calculator

Calculate your exact age in years, months, and days.

Calculators

Percentage Calculator

Calculate percentages, ratios, and percentage change.

Tip Calculator

Quickly calculate the tip and split a bill between any number of people.

Discount Calculator

Find the sale price and the amount saved for any percentage discount.

BMI Calculator

Calculate Body Mass Index in metric or imperial units, with a category result.

Pregnancy Due Date Calculator

Estimate your due date, current week, and trimester from your last period.

Time Duration Calculator

Calculate the duration between two times, including overnight shifts.

Unit Converter

Convert length, weight, temperature, volume, speed and more.

Finance

Loan Calculator

Estimate monthly loan payments, total interest, and total cost.

Finance

Mortgage Calculator

Estimate your monthly mortgage payment based on price, down payment, rate, and term.

Compound Interest Calculator

See how your savings grow with compounding interest and regular contributions.

Salary Calculator

Convert any salary between hourly, weekly, monthly, and yearly amounts.

Sales Tax Calculator

Add sales tax to a price or extract tax from a gross amount.

Generators

QR Code Generator

Create custom QR codes for any text or URL.

Generators

Password Generator

Strong, secure passwords generated instantly.

UUID Generator

Generate one or many secure UUID v4 identifiers.

Developer Tools

Base64 Encoder / Decoder

Encode text to Base64 or decode it back instantly.

Developer Tools

JSON Formatter

Beautify, minify, and validate JSON in the browser.

Hash Generator

Generate MD5, SHA-1, and SHA-256 hashes from any text.

URL Encoder / Decoder

Percent-encode or decode URLs and query strings.

Why this exists

Why SwiftTooly

Built for people who value their time and their privacy.

100% Free

Every tool, every feature. No paywalls, no hidden upgrades.

No Sign-Up Needed

Open it, use it, done. We don't ask for an account.

Privacy-First

Your files never leave your device. Everything runs locally.