All Tools
58 free tools, every one of them running entirely in your browser. Nothing uploads, nothing is stored, nothing asks you to sign in.
Images
Crop Image
Drag a box or type exact pixels, then download the cropped file.
Open tool ImagesEXIF Viewer
See the camera, date and GPS location buried inside a photo file.
Open tool ImagesFavicon Generator
Build a real multi-size .ico and every PNG icon a site needs, in your browser.
Open tool ImagesImage Compressor
Shrink JPG, PNG and WebP files without uploading them anywhere.
Open tool ImagesImage Converter
Convert between PNG, JPG and WebP without uploading anything.
Open tool ImagesImage Resizer
Change an image to exact pixel dimensions without uploading it.
Open toolText
Case Converter
Switch text between 11 cases, including camelCase and snake_case.
Open tool TextFind and Replace Text
Search and replace with whole-word matching and real regex.
Open tool TextLorem Ipsum Generator
Placeholder text by paragraph, sentence, word or list item.
Open tool TextOnline Notepad
A fast plain-text scratchpad with saving you have to ask for.
Open tool TextRemove Duplicate Lines
Deduplicate a list, with counts and a duplicates-only mode.
Open tool TextSlug Generator
Titles into clean URL slugs, one per line, accents included.
Open tool TextSort Text Lines
Alphabetical, natural, length and numeric sorting for any list.
Open tool TextText Diff Checker
Line-by-line comparison with the changed words highlighted.
Open tool TextText Reverser
Reverse characters, words or lines, or flip text upside down.
Open tool TextWhitespace Cleaner
Strip double spaces, stray tabs and invisible Unicode characters.
Open tool TextWord Counter
Live word, character and sentence counts with reading time.
Open toolDesign
Aspect Ratio Calculator
Give three numbers, get the fourth, and resize without squashing anything.
Open tool DesignCSS Border Radius Generator
Per-corner rounding, elliptical corners and blob shapes, with copyable CSS.
Open tool DesignCSS Box Shadow Generator
Stack up to four shadow layers and copy the CSS. Inset supported.
Open tool DesignColor Converter
Convert HEX, RGB and HSL, plus a built-in WCAG contrast check.
Open tool DesignColor Palette Generator
Turn one color into a five-color scheme and copy it straight into CSS.
Open tool DesignColor Contrast Checker
Test a text and background pair against the WCAG AA and AAA thresholds.
Open tool DesignCSS Gradient Generator
Linear, radial and conic gradients with a live preview and copyable CSS.
Open tool DesignCSS Unit Converter
px to rem, em, %, pt and viewport units, all at once and all configurable.
Open toolSecurity
Encrypt Text with a Passphrase
AES-256-GCM encryption for a block of text, using a passphrase.
Open tool SecurityHash Generator
Hash text or a file with MD5, SHA-1, SHA-256, SHA-384 and SHA-512.
Open tool SecurityPassword Generator
Random passwords, plus a live "time to crack" against five attackers.
Open tool SecurityPassword Strength Checker
See the patterns a cracker finds in your password, and how long it holds.
Open tool SecurityTOTP Code Generator
Generate the current two-factor code from a base32 secret.
Open toolCalculators
BMI Calculator
BMI in metric or imperial, with the weight range for your height.
Open tool CalculatorsCompound Interest Calculator
Project savings growth with contributions, compounding and inflation.
Open tool CalculatorsDiscount Calculator
Percent off, stacked discounts, and the real saving.
Open tool CalculatorsLoan Calculator
Monthly payment, total interest and a year-by-year amortization table.
Open tool CalculatorsPercentage Calculator
The four percentage questions, with the arithmetic shown.
Open tool CalculatorsTemperature Converter
Four temperature scales at once, plus the oven and gas mark chart.
Open tool CalculatorsTip Calculator
Tip, total and per-person share, with pre-tax tipping built in.
Open tool CalculatorsUnit Converter
Nine categories of units, with the same amount shown in all of them.
Open tool CalculatorsVAT Calculator
Add or remove VAT at any rate, with the rounding shown.
Open toolDeveloper
Base64 Encoder & Decoder
Encode and decode Base64, including the URL-safe variant, without breaking accents.
Open tool DeveloperCSV to JSON Converter
A real CSV parser: quoted fields, embedded newlines, ragged rows.
Open tool DeveloperHTML Entity Encoder & Decoder
Escape text for HTML, or turn a page full of entities back into readable text.
Open tool DeveloperImage to Base64 Converter
Turn an image into a data URI you can paste straight into CSS or HTML.
Open tool DeveloperJSON Formatter
Pretty-print or minify JSON, with a real line number on errors.
Open tool DeveloperJSON to CSV Converter
Flatten a JSON array into CSV with correct quoting and escaping.
Open tool DeveloperJWT Decoder
Decode a JWT, read its claims, and check the signature locally.
Open tool DeveloperNumber Base Converter
Binary, octal, decimal, hex and any base from 2 to 36, exact at any size.
Open tool DeveloperUnix Timestamp Converter
Epoch seconds or milliseconds to a readable date, and back again.
Open tool DeveloperURL Encoder & Decoder
Percent-encode a value or take a messy URL apart, parameter by parameter.
Open tool DeveloperUUID Generator (v4 and v7)
Generate v4 or time-sortable v7 UUIDs, and take an existing one apart.
Open tool DeveloperYAML to JSON Converter
Turn YAML into JSON, with honest errors instead of silent guesses.
Open toolEveryday
Age Calculator
Exact age in years, months and days, plus the next birthday.
Open tool EverydayRandom Picker
Pick a winner, shuffle a list or split it into even teams.
Open tool EverydayRoman Numeral Converter
Numerals to numbers and back, with the breakdown and a standards check.
Open toolTime
Countdown Timer
Count down to a date, or run a timer with an alarm at zero.
Open tool TimeDate Difference Calculator
Days between two dates, plus a working-days count you can tune.
Open tool TimeHours Calculator
Add shift times into a weekly total, with breaks, rounding and pay.
Open tool TimePomodoro Timer
A drift-free focus timer with custom intervals and a chime.
Open tool