23

Image Watermarker - Online Add Text or Logo to Photos

Protect your images by adding a text or image watermark. Adjust transparency, position, and rotation. All image processing is done locally; no upload to server.

Image Tool copyright image protect watermark

22

Strong Password Generator - Online Random Secure Passwords

Generate ultra-secure, random passwords with configurable length and character sets. Created entirely on your device; never transmitted or stored.

Generator generator password random security

21

Email Header Parser - Online Analyze Email Delivery Path

Paste raw email headers and get a human-readable breakdown of the delivery route, authentication results, and delays. Private analysis.

Network DKIM email header parser SPF

19

Phishing Email Checker - Online Suspicious Link Analyzer

Paste email headers or body text to quickly spot phishing signs, suspicious domains, and obfuscated links. Educational and private.

Email email link phishing security

19

SSL Certificate Checker - Online TLS Expiry & Info Tool

Inspect any website's SSL/TLS certificate details: issuer, expiry date, subject, and SANs. Verify certificate chains. All checks are private and require no server upload.

Network certificate expiry SSL TLS

19

Caesar Cipher Encoder & Decoder - Online Shift Cipher Tool

Encrypt and decrypt messages using the classic Caesar cipher with configurable shift key. Fun for puzzles and basic cryptography lessons. Entirely browser-based.

Encoder/Decoder Caesar cipher decoder encoder shift

18

Local Password Vault - Online Encrypted Browser Storage

Store passwords and notes encrypted with a master passphrase. Data lives only in your browser's localStorage. No cloud.

Productivity encrypted local password vault

18

HTML Sanitizer - Online Clean Dangerous Tags & XSS Prevention

Strip dangerous HTML tags and attributes (scripts, onclick) to prevent XSS attacks. Safe iframe preview. Local sanitation engine.

Developer Tools clean HTML sanitizer security XSS

18

Online EXIF Metadata Viewer - Photo Detail Inspector

Extract and view EXIF data from photos including camera settings, GPS location, and timestamps. All metadata read locally, your photos stay private.

Image Tool EXIF metadata photo viewer

17

Weak Password Dictionary Check - Online Top 10k List

Compare your password against a built‑in list of the 10,000 most common passwords. Instant warning if it appears.

Security check dictionary password weak

17

URL Shortener Decoder - Online Expand Shortened Links

Find out the real destination of any shortened link (bit.ly, t.co, etc.) without clicking. Resolves redirects locally using public HTTP headers.

Network decode expand shortener URL

17

Password Strength Checker - Online Meter & Analyzer Tool

Evaluate the strength of your passwords with a visual meter and detailed feedback. Check for length, complexity, and breached passwords. All analysis is client-side.

Security checker password strength security strength

17

JWT Debugger - Online JSON Web Token Decoder & Verifier

Decode the header and payload of a JSON Web Token (JWT) without verifying the signature. Inspect claims securely on the client side. Great for developers.

Developer Tools debugger decoder JWT token

17

ROT13 Encoder & Decoder - Online Caesar Cipher ROT13

Easily apply ROT13 cipher to obfuscate or reveal text. A classic letter substitution cipher that works bidirectionally. Purely client-side processing.

Encoder/Decoder cipher decoder encoder ROT13

16

Text Watermark Tile Generator - Online Pattern Overlay

Create a repeating text pattern from a short string for watermarking documents or images. Download SVG pattern.

Image Tool pattern text tile watermark

16

Browser Extension Headers Check - Online Detect Injected Scripts

Look at HTTP headers and JavaScript objects to guess which browser extensions might be installed. For awareness.

Info browser checker extension privacy

16

Iframe Sandbox Configurator - Online Test Permissions

Build an iframe with different sandbox flags and see live which features are blocked. For secure embedding.

Developer Tools iframe sandbox security test

16

String to Escaped HTML - Online Protect Against XSS

Instantly convert plain text into HTML‑safe escaped characters for secure display in web pages. Prevent cross‑site scripting. All processing local.

Developer Tools encode HTML escape security XSS

16

2FA QR Code URI Generator - Online TOTP Key Maker

Generate a standard otpauth:// URI and QR code for authenticator apps. Set issuer, account, and secret. All local.

Generator 2FA generator QR TOTP

16

.htaccess Password Generator - Online Apache Auth Creator

Generate encrypted passwords for .htaccess basic authentication. Create .htpasswd entries using bcrypt, MD5, or SHA. Server admin utility, local compute.

Developer Tools Apache generator .htaccess password

16

String Obfuscator - Online Text Encoder to Hide Content

Obfuscate strings using simple techniques to prevent casual reading. Useful for hiding spoilers or email addresses from bots. Decode with the same tool.

Security encode hide obfuscator protect

16

Online Hash Generator - MD5 SHA1 SHA256 CRC32 Checksum

Generate cryptographic and checksum hashes for any text string. Supports MD5, SHA-1, SHA-256, and CRC32. All hashing runs locally for maximum privacy.

Developer Tools checksum hash MD5 SHA256

16

Random String Generator - Online Alphanumeric Randomizer

Create random strings of any length using custom character sets. Perfect for generating API tokens, salts, and unique codes. Fully client-side secure.

Generator generator random string secret token

15

Web Crypto Key Generator - Online Generate RSA/EC Keys

Generate cryptographic key pairs using the Web Crypto API. Export as JWK or raw. No server needed; pure security.

Generator generator key RSA Web Crypto

15

Pronounceable Random Password - Online Secure & Readable

Create a random long password that alternates consonants and vowels to mimic a pronounceable word. XKCD meets CVCV. Local.

Generator generator password pronounceable secure

15

Pronounceable Password Generator - Online Easy to Say

Create secure passwords that look like gibberish words but are easy to pronounce and remember. Mix of syllables. Local generation.

Generator generator password pronounceable secure

15

Email Obfuscator - Online Protect Address from Bots

Hide your email address from scrapers by encoding it using HTML entities and CSS tricks. Still clickable for real users. Local generator.

Generator anti‑spam email encode obfuscator

15

XKCD‑Style Password Generator - Online Correct Horse Battery Staple

Create a strong, memorable password using 4 random common words. The famous xkcd method. Local wordlist.

Generator generator memorable password xkcd

15

Cookie Consent Banner Generator - Online GDPR/CCPA HTML & CSS

Create a custom cookie consent banner with text, button styles, and colors. Copy the ready‑to‑use HTML/CSS/JS snippet.

Developer Tools CCPA cookie consent GDPR generator

14

Password Strength Story - Online Visual Narrative

Evaluate password strength through a short interactive story where each character set adds lines to a narrative. Educational fun.

Educational education password story strength

14

Password Bit Strength Visualizer - Online Security Meter

Type a password and see a bar that fills based on estimated bits of entropy. Color‑coded feedback. No storage.

Security entropy password strength visualizer

14

Browser Fingerprint Viewer - Online See Your Unique ID

Generate a hash showing how trackers can fingerprint your browser (canvas, WebGL, fonts). Educational and privacy‑aware.

Info browser canvas fingerprint privacy

14

TOTP Generator (Offline) - Online Two‑Factor Code

Generate Time‑based One‑Time Passwords locally by entering a base32 secret. Verify your authenticator setup without a phone.

Generator 2FA generator secret TOTP

14

Password Policy Checker - Online Test Against Rules

Define minimum length, uppercase, digits, special chars, and check if a password meets your custom policy. Instant feedback.

Security checker compliance password policy rules

14

Local Password Breach Checker - Online k‑Anonymity

Tell if your password has appeared in data breaches without sending the full password. Uses hash prefix locally.

Security breach checker password safe

13

Memorable Passphrase Generator - Online XKCD Style

Create a strong yet easy‑to‑remember passphrase from random common words. Combines 4‑6 words. Fully offline. XKCD compliant.

Generator generator memorable passphrase words

13

HTML Escape/Unescape - Online Encode Special Characters

Escape HTML special characters to prevent XSS attacks, or unescape HTML entities back to original text. Essential for web developers. Runs locally.

Developer Tools encode HTML escape unescape XSS

12

Certificate Signing Request (CSR) Generator - Online

Generate a CSR and private key pair in the browser using the Web Crypto API. Download both as files. No data sent to server.

Developer Tools certificate CSR generator SSL

12

DKIM Record Generator - Online Public Key DNS Entry

Generate a DKIM DNS record from a public key and selector. Check syntax. Improve your domain’s email deliverability.

Network authentication DKIM DNS email

12

SPF Record Generator - Online Email Authentication DNS

Build a valid SPF TXT record by selecting mail servers, IPv4/IPv6 ranges, and includes. Validate syntax and get ready‑to‑publish output.

Network authentication DNS email SPF

12

Text Watermark on Image - Online Add Subtle Overlay

Add a repeating diagonal text watermark to your images. Adjust opacity, font, and color. Protect your photos locally.

Image Tool copyright image text watermark

12

Shift Cipher Encoder - Online Caesar & ROT0‑25

Apply a classic Caesar shift cipher with any key. Encrypt or decrypt text instantly. Brute force option included.

Encoder/Decoder Caesar decoder encoder shift cipher

12

Text to HTML Safe Converter - Online Escape for Web

Convert plain text into HTML‑safe strings by escaping <, >, &, and quotes. Insert into code safely. Local copy.

Developer Tools HTML escape safe text XSS

12

Steganography Text Hider - Online Conceal Secret Message

Hide a secret message inside a normal text using zero-width characters or invisible ink. Copy the result. Decode with the same tool.

Security hide secret steganography zero-width

11

JWT Viewer & Verifier - Online Decode & Check Signature

Paste a JSON Web Token and decode its header and payload. Verify signature if you provide the secret. Fully local.

Developer Tools decode JWT token verify

10

Password Pwned? Checker - Online k‑Anonymity

Check if a password appears in the Have I Been Pwned database using k‑Anonymity. Only the first 5 characters of the hash are sent.

Security breach checker password pwned

10

Email Header Analyzer - Online SPF, DKIM, DMARC Check

Paste raw email headers and see authentication results (SPF, DKIM, DMARC) in a readable table. Find spoofing attempts.

Network authentication email headers SPF

10

X‑Frame‑Options Tester - Online Clickjacking Defense

Check if a URL can be embedded in an iframe. Test your site’s defense against clickjacking. Browser‑based.

Security clickjacking security test X‑Frame‑Options

10

HSTS Header Checker - Online Strict‑Transport‑Security

Fetch a site’s HSTS header and validate its syntax, max‑age, and subdomain flags. Ensure your site enforce HTTPS.

Network checker header HSTS security

10

CSP Analyzer - Online Test & Improve Policy

Paste a Content‑Security‑Policy header and get a human‑readable breakdown. See potential risks and suggestions.

Analyzer analyzer CSP header security

10

Permissions‑Policy Header Generator - Online Security Config

Configure browser feature permissions (camera, microphone, geolocation) and generate the Permissions‑Policy HTTP header.

Generator generator header Permissions‑Policy security

10

Bcrypt Hash Generator & Verifier - Online Password Hashing

Hash passwords using the bcrypt algorithm with configurable cost factor. Also verify a password against a stored hash. All local.

Generator bcrypt hash password verify

10

Text Encrypt/Decrypt (Web Crypto) - Online AES & RSA

Encrypt and decrypt text using the browser's Web Crypto API. Supports AES‑GCM and subtle key generation. No server required.

Security AES decrypt encrypt Web Crypto

10

PGP Key Pair Generator - Online OpenPGP in Browser

Create a PGP key pair (RSA or ECC) directly in your browser with passphrase protection. Export public/private armored keys. No upload.

Generator generator key OpenPGP PGP

9

SHA‑1, SHA‑256, SHA‑512 Hash Generator - Online

Generate SHA‑1, SHA‑256, SHA‑512, and SHA‑3 digests of any text or file. Verify integrity. All in your browser.

Developer Tools checksum generator hash SHA‑256

9

AES Text Encrypt/Decrypt - Online Secure Message Tool

Encrypt and decrypt text using AES in the browser with a password. Uses Web Crypto API. No data sent to server.

Security AES decrypt encrypt secure

9

HMAC Generator - Online SHA‑256/512 Message Authentication

Create an HMAC (Hash‑based Message Authentication Code) using SHA‑256 or SHA‑512 with a secret key. Verify data integrity. Local.

Generator authentication generator HMAC SHA‑256

9

BIP39 Mnemonic Generator - Online 12/24 Words

Generate cryptographically secure BIP39 mnemonic phrases (12 or 24 words) for HD wallet seeds. All entropy generated locally.

Generator BIP39 mnemonic seed wallet

9

DMARC Record Generator - Online Email Policy Builder

Create a DMARC policy record with percentage, reporting addresses, and alignment mode. Validate and copy the final DNS TXT.

Network DMARC DNS email policy

8

Subresource Integrity (SRI) Hash Generator - Online

Enter a CDN URL for a script or style and generate the integrity attribute with sha384 or sha512. Protect your site.

Developer Tools generate hash integrity SRI