All Free Online Tools
Browse 68 free utilities across 7 categories. Everything runs in your browser — no signups, no data collection.
Word Counter
Check word count, reading time, and character stats as you type
Character Counter
Track character count against Twitter/X, SMS, and custom limits
JSON Formatter & Validator
Paste messy JSON, get clean indented output
Case Converter
Switch text between 8 case formats in one click
Lorem Ipsum Generator
Generate paragraphs, sentences, or exact word counts of placeholder text
Hex to RGB Color Converter
Convert between hex, RGB, and HSL color codes
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to readable text
Unit Converter
Convert length, weight, temperature, volume, and more
URL Encoder / Decoder
Percent-encode text for URLs or decode %20-style strings back to readable text
Password Generator
Create cryptographically random passwords with adjustable length and character types
Unix Timestamp Converter
Translate Unix timestamps to readable dates and back
Regex Tester
Type a regex pattern and see matches highlighted instantly in your test string
QR Code Generator
Create QR codes for URLs, Wi-Fi, vCards, and plain text
Markdown to HTML Converter
Turn Markdown into clean, sanitized HTML with GFM support
Text to Slug Converter
Turn any title or phrase into a URL-safe slug
Hash Generator
Compute SHA-1, SHA-256, and SHA-512 hashes from text or files
CSS Gradient Generator
Build linear and radial CSS gradients with a visual editor
Aspect Ratio Calculator
Find the ratio for any dimensions or resize with locked proportions
Image Resizer & Compressor
Resize dimensions, compress quality, export as JPEG/PNG/WebP
BMI Calculator
Check your body mass index from height and weight
Age Calculator
Find your exact age in years, months, and days from any date of birth
Percentage Calculator
Find X% of Y, what percent X is of Y, or the change between two values
Mortgage Calculator
Estimate monthly mortgage payments and view the full amortization schedule
Compound Interest Calculator
Project how savings or investments grow with compound interest over time
Salary Calculator
Convert between annual, monthly, bi-weekly, weekly, and hourly pay
Loan / EMI Calculator
Calculate monthly EMI for personal, auto, or student loans
Tip Calculator
Figure out the tip, total bill, and per-person split
Diff Checker
Paste two texts and see every addition, deletion, and change highlighted
UUID Generator
Generate v4 UUIDs with batch support and format options
JWT Decoder
Paste a JWT and see its header, payload, and expiration decoded
JSON to CSV Converter
Paste a JSON array, download a clean CSV
Cron Expression Generator
Build cron expressions visually or decode existing ones to plain English
HTML Minifier
Strip whitespace, comments, and redundant attributes from HTML
CSS Minifier
Compress CSS by stripping whitespace, comments, and shortening values
JavaScript Minifier
Strip whitespace and comments from JavaScript without changing behavior
HEIC to JPG Converter
Convert iPhone HEIC photos to universally compatible JPG
Color Palette Generator
Build color palettes using six harmony modes and export to CSS or Tailwind
WCAG Color Contrast Checker
Test foreground/background color pairs against WCAG AA and AAA contrast thresholds
Meta Tag Generator
Generate title, description, Open Graph, and Twitter Card tags from one form
Readability Checker
Analyze text readability with Flesch-Kincaid, Gunning Fog, and Coleman-Liau scores
Merge PDF
Combine multiple PDF files into one document
Compress PDF
Strip metadata and rebuild PDFs to cut file size without quality loss
PDF to JPG
Turn each PDF page into a numbered, high-resolution JPG
JPG to PDF
Bundle JPG images into a single multi-page PDF
Split PDF
Pull specific pages or ranges out of a PDF
Rotate PDF
Fix sideways or upside-down PDF pages with a metadata-only rotation
PDF Page Reorder
Visual drag-and-drop page rearrangement for PDFs
GPA Calculator
Figure out your cumulative GPA on a 4.0 scale
Calorie Calculator
Calculate daily calorie needs based on your stats
US Federal Tax Calculator
Estimate your US federal income tax
Date Difference Calculator
Find days, weeks, months, and business days between any two dates
Discount Calculator
Calculate sale prices and compare discount levels
Fuel Cost Calculator
Calculate gas cost for any trip distance
Time Zone Converter
Convert a date and time between any two time zones
Fraction Calculator
Do fraction arithmetic with step-by-step solutions
Standard Deviation Calculator
Get mean, variance, and standard deviation from any data set
Square Footage Calculator
Measure rooms and total up the square footage
Unit Price Calculator
Compare prices per unit to find the best deal
Reading Time Calculator
Estimate reading and speaking time with adjustable WPM
Invoice Generator
Generate branded PDF invoices with line items, tax, and logo
Email Subject Line Tester
Score subject lines on spam triggers, length, and engagement signals
.htaccess Redirect Generator
Generate Apache .htaccess redirect rules from URL pairs
Robots.txt Generator
Build robots.txt rules visually with presets for AI bot blocking
SERP Preview Tool
Preview how your title and description will appear in Google search results
Keyword Density Checker
Analyze keyword density across 1-gram, 2-gram, and 3-gram phrases
Schema Markup Generator
Generate JSON-LD structured data for Article, FAQ, Product, LocalBusiness, and HowTo schemas
Headline Analyzer
Score headlines on power words, emotion, length, and type
Aesthetic Name Generator
Generate cottagecore, dark academia, fairycore, and other aesthetic names
Your Complete Free Online Toolkit
ToolFlip brings together 68 free online tools designed for writers, developers, students, and professionals. Every tool runs entirely in your browser — no server uploads, no accounts, no data collection. Your files and text never leave your device, making ToolFlip one of the most privacy-focused utility sites available.
Text tools help writers and content creators count words, convert text case, check readability scores, and generate clean URL slugs. Developer tools cover everyday coding tasks: formatting JSON, encoding and decoding Base64 and URLs, generating UUIDs and hashes, testing regular expressions, decoding JWTs, and minifying HTML, CSS, and JavaScript.
Calculator tools handle health assessments like BMI, financial planning with mortgage and compound interest calculators, and everyday math like percentages and tip splitting. Converter tools transform color formats, image files, and units. Generator tools create passwords, QR codes, lorem ipsum text, CSS gradients, and color palettes.
All tools are built mobile-first with responsive layouts, accessible inputs, and keyboard navigation. New tools are added regularly — bookmark this page to stay up to date with the full collection.
Frequently Asked Questions
ToolFlip currently offers over 40 free online tools across six categories: text utilities, developer tools, calculators, converters, generators, and image tools. New tools are added regularly.
Yes, every tool on ToolFlip is completely free with no registration, no usage limits, and no hidden fees. All tools run entirely in your browser — your data is never sent to a server.
No. ToolFlip requires no signup, no login, and no personal information. Just open a tool and start using it immediately.
Absolutely. All processing happens in your browser using JavaScript. No data is uploaded to any server, stored in any database, or shared with any third party. You can verify this by using the tools with your internet connection disabled.
Yes, all ToolFlip tools are designed mobile-first with responsive layouts, large touch targets, and optimized keyboards. No app download required — they work in any modern browser.
ToolFlip tools are organized into six categories: Text Tools (word counter, case converter, etc.), Developer Tools (JSON formatter, regex tester, hash generator, etc.), Calculators (BMI, mortgage, percentage, etc.), Converters (color, image format, unit), Generators (password, QR code, lorem ipsum), and Image Tools (resizer, format converter).