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Original Text A Modified Text B Word-level diff Ignore whitespace Ignore case ▶ Compare ⇆ Swap ✕ Clear Both 📋 Copy Diff Copied! Added: 0 | Removed: 0 | Unchanged: 0 | Similarity: 0% Diff Result Enter text in both panels above and click Compare to see differences. How to Use the Text Diff Checker Paste your original text into the left panel (labeled A). Paste your modified text into the right panel (labeled B). Click Compare (or press Ctrl+Enter) to generate the diff. Review the results: Lines highlighted in green (with +) were added in the modified text. Lines highlighted in red (with -) were removed from the original. Lines with no highlight are unchanged. Use the statistics bar to see a quick summary: lines added, removed, unchanged, and an overall similarity percentage. Options explained: ...

Caesar Vigenere XOR AES-256 Caesar cipher shifts each letter by a fixed number of positions in the alphabet. The same shift is used for both encryption and decryption (just use the inverse). Non-letter characters are preserved unchanged. Shift (1–25) 13 Mode Encrypt Decrypt Input Text 🔒 Run Caesar Clear Result Encrypted 📋 Copy Vigenere cipher uses a keyword to apply a different Caesar shift to each character. The keyword repeats to match the input length. Only letters A–Z and a–z are shifted; everything else passes through unchanged. Keyword Mode Encrypt Decrypt Input Text 🔒 Run Vigenere Clear Result Encrypted 📋 Copy XOR cipher applies a bitwise XOR between each character and the repeating key. Applying the same key twice restores the original — so Encrypt and Decrypt are identical operations. Output is Base64-encoded to stay readable. Key (any text) Mode Encrypt Decrypt Input Text 🔒 Run XOR Clear Result Encrypted 📋 Copy AES-256-GCM via the browser's native Web Crypto API. A random 96-bit IV is generated per encryption; ciphertext is stored as iv:ciphertext in Base64. Decryption automatically extracts the IV. Your password never leaves the browser. Password Mode Encrypt Decrypt Input Text 🔒 Run AES-256 Clear Processing… Result Encrypted 📋 Copy How Each Cipher Works Caesar Cipher The Caesar cipher is one of the oldest encryption techniques. It shifts every letter in the plaintext forward (encrypt) or backward (decrypt) by a fixed number of positions in the 26-letter alphabet. A shift of 13 is the special case known as ROT13 — applying it twice returns the original text. Digits, spaces, and punctuation are left unchanged. ...

Input Text Repeat Count (1–10000) Separator New Line Space Comma Custom… Prefix (per repetition) Suffix (per repetition) Transform Options Numbered mode (1. text, 2. text…) Reverse text Shuffle lines Sort A→Z Sort Z→A Remove duplicate lines Generate ...

Paste or type your text below Copy Text Clear 0 Words 0 Characters (with spaces) 0 Characters (no spaces) 0 Sentences 0 Paragraphs 0.0 Avg Word Length 0% unique words  (0 of 0) 📖 0 sec Reading time (225 WPM) 🎙 0 sec Speaking time (130 WPM) Readability Scores Flesch Reading Ease (0–100, higher = easier) — 0 Hard60 Std100 Easy Enter text to calculate Flesch-Kincaid Grade Level (US school grade) — K (0)8th16+ (College) Enter text to calculate Top Keywords Enter text to see keyword analysis Count words → Word Counter Analyze frequency → Word Frequency ...

Enter Your Text The Web Speech API lets browsers convert text to speech entirely on-device, with no data sent to any server. Try adjusting the voice, speed, pitch, and volume below to find the combination that works best for you. 0 characters ~0 min read Voice & Language Filter by Language All Languages Voice Loading voices… Playback Settings Speed 1.00x Pitch 1.00 Volume 100% ▶ Play ▮▮ Pause ■ Stop Ready Current Word Spoken words will appear highlighted here during playback. Your browser does not support the Web Speech API. Please use a modern browser such as Chrome, Edge, or Safari. How to Use Paste or type your text into the text area above. Choose a voice — use the language filter to narrow down voices available in your browser. Adjust speed, pitch, and volume using the sliders (speed: 0.5x–2x). Press Play and watch the current word highlight in real time. Pause to temporarily stop, or Stop to cancel playback entirely. About This Tool This tool uses your browser’s built-in Web Speech API (speechSynthesis). No audio is sent to any server — everything happens locally on your device. Available voices depend on your operating system and browser. ...

24h 12h Your local time is shown with a star Popular cities: New York London Tokyo Sydney Dubai Paris Singapore Los Angeles -- Select a timezone -- + Add Clock Add clocks using the presets or selector above. Convert timezones → Timezone Converter ...

Converter World Clock Meeting Planner Convert Date & Time Date & Time From Timezone ⇄ To Timezone Converted Time — Live World Clock — — — — Compare Multiple Timezones Add Timezone + Add Meeting Planner — Business Hours Overlap Shows when 9am–5pm business hours overlap across your selected timezones. Add timezones in the World Clock tab first. ...

Add Participants Name: Timezone: + Add Quick add city: Visual Timeline — click any cell to select a meeting slot No participants yet. Add someone above. Best overlap (all 9–17) Business hours (9–17) Early/Late (7–9 or 17–20) Night Selected slot Best Meeting Times Add participants to see suggestions. Copy Meeting Invite Select a slot above or choose a time, then copy the invite text for all participants. Copy to Clipboard Copied! Related Tools: World Clock | Timezone Converter ...

Bill Details Bill Amount $ Tip Percentage 18% No Tip 15% 18% 20% 25% Number of People Options Round up per-person amount (to nearest dollar) Tip on pre-tax amount (toggle off = tip after tax) Tax Amount ($) $ Custom split (unequal amounts) Calculate Split ...

Bill Amount $ € £ ¥ Tip Percentage 10% 15% 18% 20% 25% Custom: % Split Between − 1 + person Results Tip Amount — at 18% Total Bill — bill + tip Per Person — 1 person Tip Per Person — 1 person Bill: — Tip: — Round Up Total ↑ Round Down Total ↓ Reset How to use this tip calculator: Enter your bill amount, choose a tip percentage (or type a custom one), then set how many people are splitting the bill. Use the round up/down buttons to land on a clean total, and switch currencies with the dropdown if you’re traveling abroad. ...