All Free Online Tools

Search 82 browser-based utilities for text, code, PDFs, images, SEO, math, and design.

Showing 25 tools

Word Counter Count words, characters and paragraphs while you type. Text Tools

Character Counter Count UTF-16 units and visible Unicode symbols. Text Tools

Lorem Ipsum Generator Generate a chosen amount of placeholder text. Text Tools

JSON Formatter Format or minify strict JSON without rounding numeric literals. Developer Tools

Age Calculator Calculate age between two calendar dates. Calculators

QR Code Generator Generate a PNG QR code from text or a URL. Converters

HTML Formatter Format browser-normalized HTML and compare a safe basic preview. Developer Tools

Regex Tester Inspect JavaScript regex matches and captures in an isolated worker. Developer Tools

Markdown to HTML Convert Markdown into sanitized HTML and preview it. Converters

Image Compressor Resize and encode an image with an actual size comparison. Converters

PDF Merger Combine ordinary PDF pages in your chosen document order. PDF Tools

PDF Compressor Rewrite PDF objects and compare the saved file size. PDF Tools

Image Resizer Resize by pixels or percentage with optional ratio locking. Converters

Robots.txt Generator Draft crawler rules and sitemap references. SEO Tools

SEO Length Checker Check title and description length as editing guidance. SEO Tools

Canonical Tag Generator Draft canonical and optional language-alternate tags. SEO Tools

Alt Text Checker Review image alt attributes in pasted HTML. SEO Tools

Color Contrast Checker Check contrast between two opaque HEX colors. Design Tools

Grammar Checker Review selected English spelling, repetition and spacing patterns. Text Tools

Readability Score Checker Estimate English reading difficulty with six disclosed formulas. Text Tools

Word Cloud Generator Turn Unicode word frequencies into a downloadable word cloud. Text Tools

SQL Formatter Format surrounding SQL while preserving literals and comments. Developer Tools

SERP Preview Generator Draft metadata with an illustrative search snippet. SEO Tools

Epoch Timestamp Converter Convert Unix timestamps and UTC dates with explicit units. Converters

Random Number Generator Generate a batch of random whole numbers. Calculators

More tools (57)

Case Converter Change Unicode text casing or build a camelCase identifier. Text Tools

URL Encoder/Decoder Encode components, full URLs or individual form values. Developer Tools

Base64 Encoder/Decoder Convert UTF-8 text to Base64 and back. Developer Tools

Percentage Calculator Calculate a percentage, ratio or percentage change. Calculators

BMI Calculator Calculate adult BMI from metric or imperial measurements. Calculators

Tip Calculator Calculate a tip and split the bill equally. Calculators

Date Difference Calculator Find the elapsed time between two calendar dates. Calculators

Number to Words Convert a plain decimal number to English words. Calculators

Color Converter Convert HEX, RGB and HSL colors with a live preview. Converters

CSV to JSON Convert CSV rows into JSON without changing cell values. Converters

PDF Splitter Extract PDF page groups or save one file per page. PDF Tools

PDF to Text Extract selectable PDF text with page boundaries. PDF Tools

PDF to Images Render PDF pages as PNG or JPEG files. PDF Tools

Image Cropper Move a bounded crop by pointer, keyboard or coordinates. Converters

Image Format Converter Convert JPEG, PNG and WebP with optional downscaling. Converters

Image Filter Apply image filters and export the current settings. Converters

Image to Base64 Encode validated image bytes as Base64 or a data URL. Converters

Password Generator Generate secure random passwords with every selected character type. Developer Tools

Hash Generator Hash exact UTF-8 text, including whitespace or an empty string. Developer Tools

UUID Generator Generate cryptographically random v4 UUID batches. Developer Tools

Text Diff Checker Compare original and revised text line by line. Text Tools

URL Slug Generator Create an ASCII URL slug with optional Latin accent folding. Text Tools

Text Summarizer Select existing English sentences in their original order. Text Tools

Password Strength Checker Review a password heuristic or generate a random sample. Developer Tools

Text Analyzer Inspect text counts and convert Unicode casing. Text Tools

Meta Tag Generator Draft escaped page, Open Graph and Twitter metadata. SEO Tools

Keyword Density Checker Count keyword occurrences in Latin-letter text. SEO Tools

Sitemap Generator Create sitemap XML from URLs you enter. SEO Tools

Open Graph Preview Generator Draft social metadata with illustrative card previews. SEO Tools

Unit Converter Convert supported units with explicit regional volume labels. Converters

JSON to CSV Convert JSON objects to CSV or TSV using every row’s fields. Converters

YAML to JSON Convert a supported subset of YAML to JSON. Converters

Temperature Converter Convert Celsius, Fahrenheit and Kelvin with physical bounds. Converters

Lbs to Kg Converter Convert pounds and kilograms with adjustable precision. Converters

Loan Calculator Estimate fixed-rate loan payments and repayment totals. Calculators

Discount Calculator Calculate savings, a discount percentage or a sale price. Calculators

Mortgage Calculator Estimate a fixed-rate monthly mortgage payment. Calculators

CSS Minifier Compact CSS whitespace and compare UTF-8 byte sizes. Developer Tools

HTML Entity Converter Encode Unicode code points or decode HTML entities once. Developer Tools

Binary Converter Convert nonnegative integers exactly between four bases. Developer Tools

Palindrome Checker Compare visible Unicode symbols with optional normalization. Text Tools

Reverse Text Reverse visible symbols, word order or both. Text Tools

Text Similarity Checker Compare matching phrase coverage between two supplied texts. Text Tools

JWT Decoder Inspect JWT header and payload without verifying trust. Developer Tools

HTML to Markdown Converter Convert HTML structure to Markdown source and safe preview. Developer Tools

JSON to XML Converter Map JSON to XML while keeping numeric literals exact. Developer Tools

Heading Structure Checker Review the heading outline in pasted HTML. SEO Tools

Schema Markup Generator Draft JSON-LD for seven supported schema types. SEO Tools

Color Palette Generator Generate hue or lightness palette suggestions. Design Tools

Gradient Generator Build linear or radial CSS gradients with editable stops. Design Tools

Border Radius Generator Preview and copy CSS corner radii. Design Tools

Attendance Calculator Check your attendance and classes needed for a target. Calculators

SGPA Calculator Calculate a credit-weighted SGPA using your own scale. Calculators

CGPA Calculator Calculate CGPA from weighted semesters or individual courses. Calculators

Marks Percentage Calculator Calculate an overall percentage from subject marks. Calculators

Required Marks Calculator Find the marks needed to reach an overall target. Calculators

Image to PDF Arrange JPEG or PNG images into a local image-only PDF. PDF Tools