Free Security Tools
Five tools for passwords and what surrounds them: generate one, see how long a real attacker would need against the one you already use, hash text or a file, produce the current two-factor code from a base32 secret, or encrypt a block of text with AES-256-GCM. None of it leaves your browser, which is the only condition under which any of this belongs on a web page. A strength estimate is still an estimate, and it flatters passwords a person invented.
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 toolAll categories
Merge, split, rotate and reorder PDF pages without the file leaving your computer.
See these 6 toolsImages
Six tools for making an image lighter, smaller, a different format — or for reading what it hides.
See these 11 toolsText
Eleven tools for a block of text you need to change: case, order, duplicates, differences, counts.
See these 8 toolsDesign
Eight tools for the numbers behind a design: color formats, palettes, contrast, gradients, shadows, units.
See these 9 toolsCalculators
Nine calculators for arithmetic people get wrong on a phone: percentages, discounts, VAT, tips, loans.
See these 12 toolsDeveloper
Twelve tools for the formats that sit between systems: JSON, CSV, YAML, base64, JWT, UUIDs, timestamps.
See these 3 toolsEveryday
Three small tools that fit nowhere else: exact age, a fair random draw, Roman numerals.
See these 4 toolsTime
Four tools for counting time: days between dates, a week of shifts, a countdown, a focus timer.
See these