Convert text to Base64 or decode Base64 strings back to text. fast, client-side, and handles UTF-8 characters correctly.
Escape special characters to HTML entities (e.g. < to <) or unescape them back. Prevent XSS and format code for display.
Beautify minified JSON, validate syntax, and debug errors instantly. Free online JSON parser that runs 100% in your browser for privacy.
Convert nested JSON arrays to CSV format for Excel or Google Sheets. flattens objects and handles headers automatically.
Decode JSON Web Tokens (JWT) to inspect headers and payloads. Client-side only for security - no secret keys required.
Free online tool to convert Unix timestamps (seconds & milliseconds) to human-readable dates. RFC 2822 & ISO 8601 formatting. Client-side only.
Escape special characters in URLs (percent-encoding) or decode them back. Essential for debugging query parameters and API strings.
Generate secure, random UUIDs (Universally Unique Identifiers) version 4 locally in your browser. Bulk generation supported.
Count words, characters, sentences, and paragraphs in real-time. Includes reading time estimation. Perfect for essays, tweets, and SEO.
Convert text to Base64 or decode Base64 strings back to text. fast, client-side, and handles UTF-8 characters correctly.
Q: What characters are used in Base64?
Base64 uses A-Z, a-z, 0-9, +, and /.
Escape special characters to HTML entities (e.g. < to <) or unescape them back. Prevent XSS and format code for display.
Q: Why do I need to escape HTML?
If you display user input directly on a webpage, a malicious user could inject Javascript (XSS). Escaping converts special characters like < and > into safe text representations.
Beautify minified JSON, validate syntax, and debug errors instantly. Free online JSON parser that runs 100% in your browser for privacy.
Q: Is my JSON data sent to a server?
No. This tool runs entirely in your web browser using JavaScript. No data is ever sent to our servers, ensuring your API keys and private data remain secure.
Convert nested JSON arrays to CSV format for Excel or Google Sheets. flattens objects and handles headers automatically.
Q: How are nested objects handled?
This tool attempts to flatten simple nested objects. Deeply nested structures will be stringified to fit into a single CSV cell.
Decode JSON Web Tokens (JWT) to inspect headers and payloads. Client-side only for security - no secret keys required.
Q: Do you verify the signature?
No. To verify a signature, we would need your private secret key. For security, we never ask for your secret key. This tool is for inspecting the payload only.
Free online tool to convert Unix timestamps (seconds & milliseconds) to human-readable dates. RFC 2822 & ISO 8601 formatting. Client-side only.
Q: What is a Unix timestamp?
A Unix timestamp is a way to track time as a running total of seconds. It counts the number of seconds that have elapsed since the Unix Epoch: January 1st, 1970 at UTC. This format is widely used in operating systems and file formats.
Escape special characters in URLs (percent-encoding) or decode them back. Essential for debugging query parameters and API strings.
Q: Why do URLs need encoding?
URLs can only send ASCII characters. Special characters like spaces, "&", or "?" have special meanings and must be escaped to be treated as data.
Generate secure, random UUIDs (Universally Unique Identifiers) version 4 locally in your browser. Bulk generation supported.
Q: Are these UUIDs unique?
Yes. Version 4 UUIDs use 122 bits of randomness. The probability of collision is astronomically low.
Count words, characters, sentences, and paragraphs in real-time. Includes reading time estimation. Perfect for essays, tweets, and SEO.
Q: Does it count spaces?
We provide two counts: one with spaces and one without. Most platforms (like Twitter) count spaces towards the limit.