File Tools
Calculators, generators, and text and developer utilities for everyday tasks — free and instant.
120 tools
Base64 Encoder
Encode and decode images to Base64 for the web
Calculator
Basic and scientific calculator with keyboard support
Word Counter
Count words, characters, sentences and paragraphs with reading time estimates
Unit Converter
Convert length, weight, temperature, and 5 more unit categories instantly
Color Converter
Convert colors between HEX, RGB, and HSL instantly
Case Converter
Switch between UPPERCASE, lowercase, Title and Sentence case
Character Counter
Count characters, words and sentences live
Reverse Text Generator
Reverse text, words, or each line instantly
Remove Line Breaks
Strip line breaks from pasted text in one click
Remove Extra Spaces
Clean double spaces, tabs and trailing whitespace
Remove Duplicate Lines
Delete duplicate lines from any list or text
Sort Lines Alphabetically
Sort lines A–Z, Z–A, by length, or shuffle
Slug Generator
Turn any title into a clean SEO-friendly URL slug
Text Repeater
Repeat text or emoji any number of times
Find and Replace Text
Find and replace words in text online
Fancy Text Generator
Copy-paste fancy fonts for Instagram, TikTok and bios
Bold Text Generator
Bold Unicode text you can paste anywhere
Italic Text Generator
Italic Unicode text for social bios and posts
Strikethrough Text Generator
C̶r̶o̶s̶s̶ ̶o̶u̶t̶ text that works on any platform
Small Text Generator
Tiny superscript text for aesthetic captions
Upside Down Text Generator
Flip text upside down for fun messages
Cursive Text Generator
Elegant script-style Unicode text to copy-paste
Bubble Text Generator
Ⓑⓤⓑⓑⓛⓔ letters for playful posts and bios
Mirror Text Generator
Mirrored and reversed text effects
Binary Translator
Translate text to binary code and back
Morse Code Translator
Convert text to Morse code and decode it back
Number to Words Converter
Spell out numbers in words for cheques and documents
Text Compare (Diff Checker)
Compare two texts and highlight the differences
Lorem Ipsum Generator
Generate placeholder paragraphs, sentences or words
JSON Formatter & Validator
Beautify, minify and validate JSON instantly
JSON to CSV Converter
Convert JSON arrays to CSV spreadsheets
CSV to JSON Converter
Convert CSV data to clean JSON arrays
XML Formatter
Pretty-print and minify XML documents
HTML Formatter
Beautify messy HTML with proper indentation
CSS Minifier
Minify CSS to shrink stylesheet size
JavaScript Minifier
Strip comments and whitespace from JavaScript
HTML Minifier
Compress HTML by removing extra whitespace
SQL Formatter
Format SQL queries for readability
URL Encoder / Decoder
Percent-encode and decode URLs and query strings
HTML Entity Encoder / Decoder
Escape and unescape HTML entities
Base64 Encode / Decode
Encode text to Base64 and decode it back
JWT Decoder
Decode JWT header and payload safely in-browser
UUID Generator
Generate random v4 UUIDs in bulk
Hash Generator (MD5, SHA-256)
MD5, SHA-1, SHA-256 and SHA-512 hashes from text
Unix Timestamp Converter
Convert epoch timestamps to dates and back
Regex Tester
Test regular expressions with live match highlighting
Markdown to HTML Converter
Convert Markdown to clean HTML markup
BMI Calculator
Body mass index with healthy-range breakdown
Age Calculator
Exact age in years, months and days from your birthday
Percentage Calculator
What is X% of Y, percentage of a number, and more
Loan EMI Calculator
Monthly EMI, total interest and payoff for any loan
Mortgage Calculator
Monthly mortgage payment with interest breakdown
Compound Interest Calculator
Growth of savings with compounding over time
Simple Interest Calculator
Simple interest on principal, rate and time
Tip Calculator
Tip amount and per-person split for any bill
Discount Calculator
Sale price after percentage discount and savings
GST Calculator
Add or remove GST at 5%, 12%, 18% or 28%
VAT Calculator
Add or remove VAT from any amount
Sales Tax Calculator
Price before and after sales tax
Date Difference Calculator
Days, weeks and months between two dates
GPA Calculator
Semester GPA from course grades and credits
Calorie Calculator (TDEE)
Daily calorie needs from BMR and activity level
Body Fat Calculator
Body fat percentage using the US Navy method
Pregnancy Due Date Calculator
Estimated due date from your last period
Ovulation Calculator
Fertile window and ovulation day estimate
Average Calculator
Mean, median, min and max of a number list
Fraction Calculator
Add, subtract, multiply and divide fractions
Percentage Change Calculator
Percent increase or decrease between two values
Fuel Cost Calculator
Trip fuel cost from distance, mileage and price
Password Generator
Strong random passwords with custom rules
Random Number Generator
Random numbers in any range, with or without repeats
Random Word Generator
Random English words for games and brainstorms
Random Name Picker
Pick a random winner from a list of names
Coin Flip — Heads or Tails
Flip a virtual coin for instant decisions
Dice Roller
Roll 1–10 dice with 4 to 20 sides
Signature Generator
Draw or type a signature and download it as PNG
Barcode Generator
CODE128, EAN and UPC barcodes as images
QR Code Scanner
Read QR codes from any image or screenshot
Online Notepad
Distraction-free notes that autosave in your browser
Online Stopwatch
Stopwatch with lap times, full-screen friendly
Countdown Timer
Set a timer with alarm — 5, 10, 25 minutes or custom
What Is My IP Address
See your public IP address instantly
Roman Numeral Converter
Convert numbers to Roman numerals and back
JSON Minifier
Compress JSON into compact valid output
URL Decoder
Decode percent-encoded URLs and query strings
Base64 Encoder
Encode text to Base64 safely in your browser
Base64 Decoder
Decode Base64 strings back into readable text
HTML Entity Encoder
Escape text into HTML-safe entities
HTML Entity Decoder
Decode HTML entities back to readable text
CSS Beautifier
Format compact CSS into readable rules
HTML Beautifier
Format messy HTML into clean markup
Remove Empty Lines
Delete blank lines from text instantly
Trim Lines
Trim leading and trailing spaces on every line
Prefix and Suffix Lines
Add matching text before or after every line
Phone Number Extractor
Find phone numbers inside messy text
Hashtag Extractor
Extract hashtags from captions and posts
Mention Extractor
Extract @mentions from social text
IP Address Extractor
Extract IPv4 addresses from logs and text
Domain Extractor
Extract domains from URLs and raw text
Word Frequency Counter
Rank words by how often they appear
Sentence Counter
Count sentences and average sentence length
Paragraph Counter
Count paragraphs and words per paragraph
Text to ASCII Converter
Convert text into character codes
ASCII to Text Converter
Convert numeric character codes into text
ROT13 Encoder
Encode or decode text with ROT13
Comma List Converter
Convert lines to commas and commas to lines
Date Extractor
Extract dates from notes, emails and documents
HTML Comment Remover
Remove HTML comments from markup
Salary Calculator
Convert annual, monthly, weekly and hourly pay
Hourly to Salary Calculator
Estimate annual salary from hourly rate
Time Duration Calculator
Calculate duration between two clock times
Grade Calculator
Calculate weighted course grades
Markup Calculator
Calculate selling price from cost and markup
Profit Margin Calculator
Calculate gross profit margin from cost and revenue
Aspect Ratio Calculator
Resize dimensions while preserving aspect ratio
Username Generator
Generate clean usernames for profiles and games
Random Date Generator
Generate random dates inside a date range
PIN Generator
Generate random numeric PINs and codes
Nil UUID Generator
Generate the all-zero UUID for tests
Meta Description Generator
Draft concise SEO meta descriptions
Small utilities that should not need a server
Formatting JSON, counting words, generating a password, hashing a string, converting units — none of these require sending your data anywhere, yet most online versions do exactly that. Every utility in this category runs entirely in your browser. For developer tools in particular that distinction matters: an API response, a config file, or a token pasted into a remote formatter has been disclosed to whoever operates it, and often logged.
Developer utilities
The formatters and validators here parse input properly rather than applying regular expressions, so a JSON or XML document that fails to format is genuinely malformed and the error tells you where. Encoders and decoders cover the transforms that come up constantly in debugging: Base64 for binary carried through text channels, URL encoding for query parameters, and hashing for checksums and fingerprints. Because everything is local, these are safe to use with production data — which is precisely when you most need them.
Text tools
Cleaning up text is unglamorous and endlessly necessary: stripping line breaks pasted out of a PDF, removing duplicate lines from a list, collapsing repeated whitespace, changing case across a heading, turning a title into a URL slug. Each of these is a few seconds of work with the right tool and a tedious manual edit without one. The counters go further than length, reporting characters, words, sentences, and reading time — useful when writing to a hard limit such as a meta description or a social post.
Calculators and generators
The calculators cover everyday arithmetic that is easy to get subtly wrong: percentages, date differences, unit and currency-style conversions, BMI, averages. Unit conversion in particular has a trap worth knowing — temperature scales need offset arithmetic rather than simple multiplication, so converting Celsius to Fahrenheit is not a single ratio. The generators produce passwords, QR codes, barcodes, hashes, and placeholder text, all computed locally, which for passwords is the only sensible arrangement.