International Phone Number Formatter - Online Validate & Normalize
Paste a phone number and format it according to the E.164 standard. Identify country and detect common typos. Local parser.
UD5 Toolkit
Validate IBAN format, verify check digits, identify country, and decode bank structure instantly.
Showing all -- IBAN-participating countries
| Country | Code | Length | BBAN Format | Example |
|---|
Paste a phone number and format it according to the E.164 standard. Identify country and detect common typos. Local parser.
Identify common grammar mistakes (subject-verb agreement, tense, articles) with simple rule-based analysis. Explanations provided. Not AI, purely rule-based and local.
Validate ISBNâ10 and ISBNâ13 numbers and compute their check digits. Useful for booksellers and libraries. All local.
Query a domain's DNS record against multiple public resolvers (Google, Cloudflare) and see how it propagates. Clientâside fetch.
Drop an image that might have wrong extension and see its real format (JPEG, PNG, WebP) based on header bytes.
Paste your AcceptâLanguage header and see which languages your site should serve based on quality values. Internationalization helper.
Query DNS records for any domain directly from your browser using DNS-over-HTTPS. See A, AAAA, MX, CNAME, and TXT records. No logs.
Upload a text file to detect its character encoding (UTF-8, ISO-8859-1, etc.) and BOM presence. Runs entirely in your browser.
Convert nested JSON translation files into a flat CSV table for translators. Also reverse back. Local only.
Detect browser support for fontâtech() and fontâformat() values in @fontâface src. Check COLRv1, variable, etc.
Test different lineâbreak and wordâbreak values on Chinese/Japanese/Korean text. See how browsers wrap. Essential for i18n.
Paste text and quickly highlight potential proper nouns (capitalized sequences). Aid for editing or anonymization. Simple regex-based, local.
Paste your JSONâLD or Microdata and test it against Google's Rich Results criteria. Get warnings. Local linter.
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.
Check if your site is crossâorigin isolated by examining the COOP and COEP headers. See if SharedArrayBuffer is available.
Check English spelling and get suggestions using the browser's built-in dictionary. Highlight errors instantly. No data leaves your machine.
Interpret your blood pressure reading based on American Heart Association and European Society of Cardiology categories. Visual gauge with actionable health insights.
Paste raw email headers and see authentication results (SPF, DKIM, DMARC) in a readable table. Find spoofing attempts.
Type or paste Korean Hangul and see the revised romanization. Also works backwards for basic words. Study aid.
Test how nonâLatin characters (Chinese, Cyrillic, Arabic) convert to URLâsafe slugs with proper transliteration rules. Preview the final string.
Paste two texts and see cosine and Jaccard similarity scores. Understand how close two documents are. All local math.
Paste HTML and see a collapsible tree of tags. Understand document outline and nesting. Handier than raw code.
Enter a URL and a userâagent to see if it is allowed or blocked by the robots.txt file. Quick bot validation.
Paste text and detect its language (70+ languages) using a simple character n-gram model implemented in JavaScript. No server communication.
Check and beautify your TOML config files. Highlights errors and aligns tables and arrays. Safe local parsing.
Enter a URL and extract tabâindex order violations and focusable elements. Quick accessibility audit. Clientâside fetch.
Create categorized shopping lists (produce, dairy, meat, etc.). Add items, check them off, and print. Data stored in your browser. Never lose a list.
Drop or paste an .ics file and see all events in a readable table. Check dates, times, and locations. Privacyâfriendly.
Beautify and format your CSS stylesheets instantly. Organize, minify, or prettify CSS code for better readability. Processed securely on client-side.
Convert standard Arabic numbers into formal Japanese/Kanji numerals (e.g., 123 â çžäşĺä¸). Also supports large numbers.