Tous les outils
58 outils gratuits, tous fonctionnant entièrement dans votre navigateur. Rien n'est envoyé, rien n'est stocké, rien ne demande de connexion.
Images
Crop Image
Drag a box or type exact pixels, then download the cropped file.
Ouvrir l'outil ImagesEXIF Viewer
See the camera, date and GPS location buried inside a photo file.
Ouvrir l'outil ImagesFavicon Generator
Build a real multi-size .ico and every PNG icon a site needs, in your browser.
Ouvrir l'outil ImagesImage Compressor
Shrink JPG, PNG and WebP files without uploading them anywhere.
Ouvrir l'outil ImagesImage Converter
Convert between PNG, JPG and WebP without uploading anything.
Ouvrir l'outil ImagesImage Resizer
Change an image to exact pixel dimensions without uploading it.
Ouvrir l'outilText
Case Converter
Switch text between 11 cases, including camelCase and snake_case.
Ouvrir l'outil TextFind and Replace Text
Search and replace with whole-word matching and real regex.
Ouvrir l'outil TextLorem Ipsum Generator
Placeholder text by paragraph, sentence, word or list item.
Ouvrir l'outil TextOnline Notepad
A fast plain-text scratchpad with saving you have to ask for.
Ouvrir l'outil TextRemove Duplicate Lines
Deduplicate a list, with counts and a duplicates-only mode.
Ouvrir l'outil TextSlug Generator
Titles into clean URL slugs, one per line, accents included.
Ouvrir l'outil TextSort Text Lines
Alphabetical, natural, length and numeric sorting for any list.
Ouvrir l'outil TextText Diff Checker
Line-by-line comparison with the changed words highlighted.
Ouvrir l'outil TextText Reverser
Reverse characters, words or lines, or flip text upside down.
Ouvrir l'outil TextWhitespace Cleaner
Strip double spaces, stray tabs and invisible Unicode characters.
Ouvrir l'outil TextWord Counter
Live word, character and sentence counts with reading time.
Ouvrir l'outilDesign
Aspect Ratio Calculator
Give three numbers, get the fourth, and resize without squashing anything.
Ouvrir l'outil DesignCSS Border Radius Generator
Per-corner rounding, elliptical corners and blob shapes, with copyable CSS.
Ouvrir l'outil DesignCSS Box Shadow Generator
Stack up to four shadow layers and copy the CSS. Inset supported.
Ouvrir l'outil DesignColor Converter
Convert HEX, RGB and HSL, plus a built-in WCAG contrast check.
Ouvrir l'outil DesignColor Palette Generator
Turn one color into a five-color scheme and copy it straight into CSS.
Ouvrir l'outil DesignColor Contrast Checker
Test a text and background pair against the WCAG AA and AAA thresholds.
Ouvrir l'outil DesignCSS Gradient Generator
Linear, radial and conic gradients with a live preview and copyable CSS.
Ouvrir l'outil DesignCSS Unit Converter
px to rem, em, %, pt and viewport units, all at once and all configurable.
Ouvrir l'outilSecurity
Encrypt Text with a Passphrase
AES-256-GCM encryption for a block of text, using a passphrase.
Ouvrir l'outil SecurityHash Generator
Hash text or a file with MD5, SHA-1, SHA-256, SHA-384 and SHA-512.
Ouvrir l'outil SecurityPassword Generator
Random passwords, plus a live "time to crack" against five attackers.
Ouvrir l'outil SecurityPassword Strength Checker
See the patterns a cracker finds in your password, and how long it holds.
Ouvrir l'outil SecurityTOTP Code Generator
Generate the current two-factor code from a base32 secret.
Ouvrir l'outilCalculators
BMI Calculator
BMI in metric or imperial, with the weight range for your height.
Ouvrir l'outil CalculatorsCompound Interest Calculator
Project savings growth with contributions, compounding and inflation.
Ouvrir l'outil CalculatorsDiscount Calculator
Percent off, stacked discounts, and the real saving.
Ouvrir l'outil CalculatorsLoan Calculator
Monthly payment, total interest and a year-by-year amortization table.
Ouvrir l'outil CalculatorsPercentage Calculator
The four percentage questions, with the arithmetic shown.
Ouvrir l'outil CalculatorsTemperature Converter
Four temperature scales at once, plus the oven and gas mark chart.
Ouvrir l'outil CalculatorsTip Calculator
Tip, total and per-person share, with pre-tax tipping built in.
Ouvrir l'outil CalculatorsUnit Converter
Nine categories of units, with the same amount shown in all of them.
Ouvrir l'outil CalculatorsVAT Calculator
Add or remove VAT at any rate, with the rounding shown.
Ouvrir l'outilDeveloper
Base64 Encoder & Decoder
Encode and decode Base64, including the URL-safe variant, without breaking accents.
Ouvrir l'outil DeveloperCSV to JSON Converter
A real CSV parser: quoted fields, embedded newlines, ragged rows.
Ouvrir l'outil DeveloperHTML Entity Encoder & Decoder
Escape text for HTML, or turn a page full of entities back into readable text.
Ouvrir l'outil DeveloperImage to Base64 Converter
Turn an image into a data URI you can paste straight into CSS or HTML.
Ouvrir l'outil DeveloperJSON Formatter
Pretty-print or minify JSON, with a real line number on errors.
Ouvrir l'outil DeveloperJSON to CSV Converter
Flatten a JSON array into CSV with correct quoting and escaping.
Ouvrir l'outil DeveloperJWT Decoder
Decode a JWT, read its claims, and check the signature locally.
Ouvrir l'outil DeveloperNumber Base Converter
Binary, octal, decimal, hex and any base from 2 to 36, exact at any size.
Ouvrir l'outil DeveloperUnix Timestamp Converter
Epoch seconds or milliseconds to a readable date, and back again.
Ouvrir l'outil DeveloperURL Encoder & Decoder
Percent-encode a value or take a messy URL apart, parameter by parameter.
Ouvrir l'outil DeveloperUUID Generator (v4 and v7)
Generate v4 or time-sortable v7 UUIDs, and take an existing one apart.
Ouvrir l'outil DeveloperYAML to JSON Converter
Turn YAML into JSON, with honest errors instead of silent guesses.
Ouvrir l'outilEveryday
Age Calculator
Exact age in years, months and days, plus the next birthday.
Ouvrir l'outil EverydayRandom Picker
Pick a winner, shuffle a list or split it into even teams.
Ouvrir l'outil EverydayRoman Numeral Converter
Numerals to numbers and back, with the breakdown and a standards check.
Ouvrir l'outilTime
Countdown Timer
Count down to a date, or run a timer with an alarm at zero.
Ouvrir l'outil TimeDate Difference Calculator
Days between two dates, plus a working-days count you can tune.
Ouvrir l'outil TimeHours Calculator
Add shift times into a weekly total, with breaks, rounding and pay.
Ouvrir l'outil TimePomodoro Timer
A drift-free focus timer with custom intervals and a chime.
Ouvrir l'outil