Online tools

DNS Lookup retrieves DNS records for a hostname so you can investigate website routing, mail delivery, and domain configuration. See examples and limits.

IP Lookup displays location information associated with an IP address. Follow practical steps, compare the example, and understand the result’s limitations.

Reverse IP Lookup requests the reverse hostname associated with an IP address. See the steps, compare a practical example, and understand the key limitations.

SSL Lookup inspects the certificate presented by a hostname on a chosen port. See the steps, compare a practical example, and understand the key limitations.

Whois Lookup retrieves available domain registration information through an RDAP lookup. Review clear steps, a practical example, and limitations before use.

Ping checks a selected target using the available website, ping, or port mode. See the steps, compare a practical example, and understand the key limitations.

HTTP headers lookup displays response headers returned for a web URL. Follow practical steps, compare the example, and understand the result’s limitations.

HTTP/2 Checker checks whether the submitted URL uses HTTP/2 in the tool’s request. See how to enter your data, read the result, and avoid common mistakes.

Brotli Checker checks the response to a web request for Brotli content encoding. See how to enter your data, read the result, and avoid common mistakes.

Safe URL checker checks a submitted URL against the configured Google Safe Browsing service. Use the steps and examples to interpret the result correctly.

Google cache checker is a legacy cache lookup with an important service limitation. See how to enter your data, read the result, and avoid common mistakes.

URL redirect checker helps inspect server-directed changes between a submitted URL and its destinations. See clear steps, examples, and important limits.

Password strength checker gives a basic composition indicator for sample password text. Review clear steps, a practical example, and limitations before use.

Meta tags checker extracts meta elements from the HTML returned for a URL. See the steps, compare a practical example, and understand the key limitations.

Website hosting checker adds network information to a hostname investigation. See the steps, compare a practical example, and understand the key limitations.

File mime type checker displays file information reported by your browser, including the MIME type. Review the example and limits before using the result.

Gravatar checker previews Gravatar image requests associated with an email address and several fallback styles. Review the steps and practical examples.

Text separator replaces a selected separator with another separator in your text. See how to enter your data, read the result, and avoid common mistakes.

Email extractor finds email-shaped strings in supplied text so you can review contact details without copying each match by hand. See examples and limits.

URL extractor identifies HTTP and HTTPS links in text you provide. Follow practical steps, compare the example, and understand the result’s limitations.

Text size calculator estimates the byte size of the text entered in its field. See the steps, compare a practical example, and understand the key limitations.

Duplicate lines remover keeps the first occurrence of each matching line in supplied text. Use the steps and examples to interpret the result correctly.

Text to speech turns a short text sample into spoken audio using the selected language. Review clear steps, a practical example, and limitations before use.

IDN Punnycode converter converts internationalized domain text between Unicode and its ASCII-compatible representation. Review examples and practical limits.

Case converter changes capitalization and offers common word-based naming styles. See how to enter your data, read the result, and avoid common mistakes.

Character counter displays character, word, and line counts for submitted text. See how to enter your data, read the result, and avoid common mistakes.

List randomizer rearranges the entries in a line-separated list. See the complete workflow, compare a practical example, and understand the key limitations.

Reverse words changes the order of space-separated words while keeping the letters inside each item together. See clear steps, examples, and important limits.

Reverse letters reverses the supplied text representation to produce a backward sequence. Review clear steps, a practical example, and limitations before use.

Emojis remover removes characters recognized by its installed emoji list from supplied text. Use the steps and examples to interpret the result correctly.

Reverse list flips the order of line-separated entries while keeping each entry together. Review clear steps, a practical example, and limitations before use.

List alphabetizer sorts line-separated entries in the selected ascending or descending direction. Review the example and limits before using the result.

Upside down text generator replaces supported letters with Unicode characters that resemble rotated text. See clear steps, examples, and important limits.

Old English text generator maps supported letters to Unicode characters with a blackletter-like appearance. See clear steps, examples, and important limits.

Cursive text generator changes supported letters into Unicode characters with a script-like appearance. Follow clear steps and compare the practical example.

Palindrome checker tests whether the supplied string reads identically from both ends. Review clear steps, a practical example, and limitations before use.

Base64 encoder represents supplied text using the Base64 alphabet. Follow practical steps, compare the example, and understand the result’s limitations.

Base64 decoder turns a Base64 text representation back into its decoded contents. See how to enter your data, read the result, and avoid common mistakes.

Base64 to Image previews image data supplied as a Base64 payload. See the complete workflow, compare a practical example, and understand the key limitations.

Image to Base64 encodes the bytes of a selected image as text. See the complete workflow, compare a practical example, and understand the key limitations.

URL encoder percent-encodes text using form-style URL encoding. See the complete workflow, compare a practical example, and understand the key limitations.

URL decoder converts percent-encoded text back using form-style decoding rules. See how to enter your data, read the result, and avoid common mistakes.

Color converter represents a color as HEX, HEX Alpha, RGB, RGBA, HSV, HSL, or HSLA. Compare the output values when preparing a palette or design handoff.

Binary converter translates text bytes into binary groups and decodes groups back to text. Compare a worked example and learn why leading zeros may be absent.

Hex converter encodes text as hexadecimal byte pairs or decodes valid pairs back to text. Check an example and the input rules before comparing encoded values.

Ascii converter shows decimal byte codes for text and converts space-separated codes back to characters. Learn how accented letters can use several byte values.

Decimal converter turns text into decimal byte codes or reads space-separated codes as text. Compare an example and distinguish byte values from fractions.

Octal converter represents text bytes in base eight and decodes octal groups back to text. See an example and check which digits are valid for this format.

Morse converter translates messages between written Morse notation and text. Compare dots and dashes in an example for a puzzle, lesson, or character check.

Number to words converter writes an integer in the language selected in the form. Follow a worked example and check the limits for decimal and currency inputs.

PayPal link generator builds a payment URL from recipient email, item, amount, currency, and return addresses. Review its parameters before sharing the link.

Signature generator lets you draw a signature, select its ink color, and export SVG, PNG, JPG, or WEBP. Use Undo or Clear to revise the drawing before download.

Mailto link generator builds an email link with recipients, CC, BCC, subject, and message. Review the prepared fields before opening it in a mail application.

UTM link generator adds source, medium, campaign, content, and term tags to a URL. Review naming and existing parameters before using the link in a campaign.

WhatsApp link generator builds a contact URL from an international phone number and optional message. Review the number and prepared text before sharing it.

YouTube Timestamp link generator points a video URL to a chosen moment. Enter minutes and seconds, including zero where needed, then check the resulting link.

Slug generator turns a heading into a lowercase identifier with hyphen separators. Review retained accented letters and check the result before publishing.

Lorem Ipsum generator creates temporary words, sentences, or paragraphs for a design draft. Choose the amount and assess spacing before replacing the filler.

Password generator creates a string with your selected length and enabled pools of digits, symbols, and letters. Check the result against the required format.

Random number generator produces an integer between a minimum and maximum. Try a worked example and check the limits before using results in sample datasets.

UUID v4 generator creates a grouped identifier for sample records and test fixtures. Inspect version and variant fields and understand the generation limits.

Bcrypt generator creates a password-hash result for sample text. Understand random salts, verification, and runtime defaults before interpreting the output.

MD2 generator: Calculate a 128-bit text digest, compare a real example, and identify the exact algorithm and input limits before checking a reference value.

MD4 generator: Calculate a 128-bit text digest, compare a real example, and identify the exact algorithm and input limits before checking a reference value.

MD5 generator: Calculate a 128-bit text digest, compare a real example, and identify the exact algorithm and input limits before checking a reference value.

Whirlpool generator: Calculate a 512-bit text digest, compare a real example, and identify the exact algorithm and input limits before checking a reference.

SHA-1 generator: Calculate a 160-bit text digest, compare a real example, and identify the exact algorithm and input limits before checking a reference value.

SHA-224 generator: Calculate a 224-bit text digest, compare a real example, and identify the exact algorithm and input limits before checking a reference value.

SHA-256 generator: Calculate a 256-bit text digest, compare a real example, and identify the exact algorithm and input limits before checking a reference value.

SHA-384 generator: Calculate a 384-bit text digest, compare a real example, and identify the exact algorithm and input limits before checking a reference value.

SHA-512 generator: Calculate a 512-bit text digest, compare a real example, and identify the exact algorithm and input limits before checking a reference value.

SHA-512/224 generator computes a 224-bit digest using its own algorithm parameters. Compare the example and learn why it differs from truncating SHA-512.

SHA-512/256 generator computes a 256-bit digest using its own algorithm parameters. Compare the example and learn why it differs from truncating SHA-512.

SHA-3/224 generator: Calculate a 224-bit text digest, compare a real example, and identify the exact algorithm and input limits before checking a reference.

SHA-3/256 generator: Calculate a 256-bit text digest, compare a real example, and identify the exact algorithm and input limits before checking a reference.

SHA-3/384 generator: Calculate a 384-bit text digest, compare a real example, and identify the exact algorithm and input limits before checking a reference.

SHA-3/512 generator: Calculate a 512-bit text digest, compare a real example, and identify the exact algorithm and input limits before checking a reference.

HTML minifier prepares compact markup from an HTML sample. Compare character counts, inspect whitespace changes, and test the result before using it on a page.

CSS minifier compacts stylesheet source for review. Compare the result with the original, test selector behavior, and retain readable CSS for later maintenance.

JS minifier compacts JavaScript source for review. Compare the output with your original script and test its behavior before replacing code in an application.

JSON validator & beautifier checks JSON objects and arrays and presents indented output. Check syntax errors and the limits for standalone false, zero, or null.

SQL formatter/beautifier reformats queries for easier reading. Review indentation and clauses without executing SQL, then validate the query in its environment.

HTML entity converter encodes or decodes entity notation in text. Check the worked example and encoding layers when comparing reserved characters with markup.

BBCode to HTML translates supported forum-style tags into HTML markup. Compare a worked example, check nesting, and review custom tags before migrating content.

Use Markdown to HTML to turn headings, lists, and emphasis into HTML code. Review a practical example, check the markup, and preview it before publishing.

Use HTML tags remover to extract plain text from markup. Check spacing, entity references, and paragraph breaks before copying the result into another document.

Use User agent parser to inspect a browser identification string. Review browser, operating-system, and device details, with examples and parsing limitations.

Use URL parser to inspect an address by scheme, host, path, query, and fragment. Review an example and check unusual parameters before editing a copied link.

Use Image optimizer to compare image formats, quality, and resulting sizes. Download successful copies separately or as a ZIP, then check their appearance.

Use PNG to JPG to prepare a screenshot for a photo-oriented upload form. Check actual format, appearance, and destination compatibility before using the copy.

Use PNG to WEBP to test a PNG illustration in a WebP publishing workflow. Check actual format, appearance, and destination compatibility before using the copy.

Use PNG to BMP to check a PNG diagram against a legacy bitmap requirement. Inspect its preview and actual file format before using the downloaded copy.

Use PNG to GIF to evaluate a static PNG badge for a GIF-only destination. Check actual format, appearance, and destination compatibility before using the copy.

Use PNG to ICO to test whether a PNG logo can supply an icon-file workflow. Inspect its preview and actual file format before using the downloaded copy.

Use JPG to PNG to prepare a JPEG photograph for an editor that requests PNG. Inspect its preview and actual file format before using the downloaded copy.

Use JPG to WEBP to compare a JPEG product photo with a WebP working copy. Check actual format, appearance, and destination compatibility before using the copy.

Use JPG to GIF to test a static photograph against a destination asking for GIF. Inspect its preview and actual file format before using the downloaded copy.

Use JPG to ICO to evaluate a square photo as a candidate for an icon task. Inspect its preview and actual file format before using the downloaded copy.

Use JPG to BMP to check a JPEG scan for use in a bitmap-based desktop process. Inspect its preview and actual file format before using the downloaded copy.

Use WEBP to JPG to test a WebP product image for a JPEG-oriented marketplace form. Inspect its preview and actual file format before using the downloaded copy.

Use WEBP to GIF to evaluate a WebP graphic for a static GIF handoff. Check actual format, appearance, and destination compatibility before using the copy.

Use WEBP to PNG to prepare a WebP illustration for a PNG-based design document. Inspect its preview and actual file format before using the downloaded copy.

Use WEBP to BMP to test a web illustration against an older bitmap import requirement. Check the actual file format and preview before using the copy.

Use WEBP to ICO to assess a WebP brand mark for an icon-editor handoff. Check actual format, appearance, and destination compatibility before using the copy.

Use BMP to JPG to prepare a bitmap scan for a photo-upload compatibility test. Inspect its preview and actual file format before using the downloaded copy.

Use BMP to GIF to test a bitmap symbol for a destination requesting a GIF. Inspect its preview and actual file format before using the downloaded copy.

Use BMP to PNG to prepare a bitmap diagram for a PNG document attachment. Check actual format, appearance, and destination compatibility before using the copy.

Use BMP to WEBP to test an old bitmap illustration in a modern web-image workflow. Inspect its preview and actual file format before using the downloaded copy.

Use BMP to ICO to evaluate a bitmap symbol before preparing a dedicated icon file. Inspect its preview and actual file format before using the downloaded copy.

Use ICO to JPG to test an icon image in a photo-oriented documentation workflow. Inspect its preview and actual file format before using the downloaded copy.

Use ICO to GIF to evaluate a decoded icon for a static GIF-oriented layout. Inspect its preview and actual file format before using the downloaded copy.

Use ICO to PNG to extract a browser-decoded icon image for use in a PNG layout. Inspect its preview and actual file format before using the downloaded copy.

Use ICO to WEBP to prepare a decoded desktop icon for a WebP publishing test. Inspect its preview and actual file format before using the downloaded copy.

Use ICO to BMP to check an icon image against a bitmap-based documentation requirement. Check the actual file format and preview before using the copy.

Use GIF to JPG to prepare a static GIF frame for a photo-style upload test. Inspect its preview and actual file format before using the downloaded copy.

Use GIF to ICO to evaluate a static GIF symbol for an icon-production workflow. Inspect its preview and actual file format before using the downloaded copy.

Use GIF to PNG to prepare a static image from GIF for a PNG-based document. Inspect its preview and actual file format before using the downloaded copy.

Use GIF to WEBP to test a static GIF illustration as a WebP page asset. Check actual format, appearance, and destination compatibility before using the copy.

Use GIF to BMP to test a still GIF graphic against a bitmap-only import request. Inspect its preview and actual file format before using the downloaded copy.

Use Unix Timestamp to Date to read Unix seconds as UTC and local time. Check source units, compare results, and avoid confusing seconds with milliseconds.

Use Date to Unix Timestamp to convert calendar fields and a selected timezone into Unix time. Follow the steps and verify the result with a reverse check.

Use YouTube thumbnail downloader to inspect video thumbnail versions, copy image addresses, and download suitable artwork while checking availability and reuse.

Use QR code reader to decode a QR image and inspect its text before acting. Follow file-selection steps, improve readability, and review destination limits.

Use Barcode reader to read a supported code from an image. Compare the decoded value with your label, preserve leading zeros, and check image quality limits.

Use Exif reader to inspect recognized image metadata and compare original and exported copies. Review missing fields and understand what metadata cannot prove.

Use Color picker to choose a shade and copy its displayed color values. Try a button-color example and check contrast and printing requirements separately.