Semaphore Flag Translator - Online Signal Code Converter
Translate text into semaphore flag positions and decode semaphore back to letters. Interactive animated flags. For scouts and maritime fans.
UD5 Toolkit
Translate text into semaphore flag positions and decode semaphore back to letters. Interactive animated flags. For scouts and maritime fans.
Paste raw email headers and get a human-readable breakdown of the delivery route, authentication results, and delays. Private analysis.
Easily apply ROT13 cipher to obfuscate or reveal text. A classic letter substitution cipher that works bidirectionally. Purely client-side processing.
Paste an ASCII‑armored PGP message and view its packet structure. See the encrypted/plaintext blocks without decrypting.
Enter a URL and see its CORS headers. Understand why a fetch fails. Check preflight responses. Client‑side debugger.
Paste an enciphered text and instantly see all 25 possible shifts. Highlight the most plausible.
Check and beautify your TOML config files. Highlights errors and aligns tables and arrays. Safe local parsing.
Convert text and files to Base64 or decode Base64 back to original content. Processed locally with no server upload, ensuring complete data security.
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.
Paste your Accept‑Language header and see which languages your site should serve based on quality values. Internationalization helper.
Encode or decode text using Base32 scheme. Ideal for legacy systems and data obfuscation. Works completely offline in your browser for maximum security.
Enter a URL and a user‑agent to see if it is allowed or blocked by the robots.txt file. Quick bot validation.
Drop a file to see its MIME type and the first few magic bytes (hex and ASCII). No upload, works instantly.
Drop an image that might have wrong extension and see its real format (JPEG, PNG, WebP) based on header bytes.
Pick your egg style and get a precise timer with visual progress. Perfect boiled eggs every time. No app needed.
Upload a text file to detect its character encoding (UTF-8, ISO-8859-1, etc.) and BOM presence. Runs entirely in your browser.
Convert normal text to Unicode mathematical bold, italic, script, fraktur, and double‑struck. Copy rich text for anywhere.
Query DNS records for any domain directly from your browser using DNS-over-HTTPS. See A, AAAA, MX, CNAME, and TXT records. No logs.
Connect to a WebTransport server and exchange data over QUIC. See latency and throughput. Perfect for exploring low‑latency real‑time APIs.
Enter a URL and get a quick simulation of First Contentful Paint, LCP, and CLS using browser metrics. Lightweight alternative.
Establish a peer‑to‑peer text chat between two browser tabs or devices using WebRTC data channels. All signaling via copy‑paste. No server.
Drop or paste an .ics file and see all events in a readable table. Check dates, times, and locations. Privacy‑friendly.
Paste raw email headers and see authentication results (SPF, DKIM, DMARC) in a readable table. Find spoofing attempts.
Paste text and instantly see if it contains hidden zero‑width characters often used in steganography. Reveal invisible payloads.
Paste a string of 0s and 1s and decode it back into ASCII text. Handles space‑separated blocks. Local.
Query a domain's DNS record against multiple public resolvers (Google, Cloudflare) and see how it propagates. Client‑side fetch.
Check if your site is cross‑origin isolated by examining the COOP and COEP headers. See if SharedArrayBuffer is available.
Experiment with JavaScript Intl.DateTimeFormat options. Choose locale, dateStyle, timeStyle, hour12 and see live output. Copy the code snippet for your project.
Parse a Snowflake ID (used by Discord, Twitter) into its timestamp, worker, and sequence components. Instant local decoding.
Toggle OpenType features like liga, smcp, tnum, and see the text update. Support for variable fonts. Typography nerds.