Free Online Tools by UtiLab

Insert a line break every N characters.

Online tool for encoding and decoding UTF-8 text to and from Base64 directly in your browser.

Online character counter for symbols, words, lines, paragraphs, and UTF-8 byte size.

Online tool for quickly comparing two texts by match status, length, words, and lines.

Online tool for counting occurrences of a word, phrase, substring, or regular expression in text.

Online tool for converting Russian text to Latin characters. Useful for names, addresses, filenames, links, and technical identifiers.

Online tool for finding and extracting email addresses from text, emails, HTML, logs, and exports.

Online tool for finding and extracting emoji, emoticons, flags, and emoji sequences from text.

Online tool for finding and extracting URLs and links from text, HTML, Markdown, emails, and messages.

Online tool for finding and extracting Russian and international phone numbers from text.

Online tool for finding and bulk replacing text, substrings, and regular expressions.

Online tool for escaping HTML characters in text: <, >, &, quotes, and apostrophes.

Online tool for decoding HTML entities back into readable plain text.

Online tool for joining list lines into one string with a space, comma, semicolon, or custom separator.

Reverse transliteration from Latin to Russian using GOST System B rules.

Online tool for counting lines, empty lines, and analyzing line length in text, logs, and CSV.

Online tool for adding numbers to text lines, lists, instructions, code, and documentation.

Online tool for hiding email addresses in text, logs, screenshots, demos, and public reports.

Online tool for hiding phone numbers in text, logs, screenshots, demos, and public materials.

Online tool for carefully replacing hyphens, en dashes, and em dashes in text.

Online tool for converting quotes to a single style: curly, straight, or single quotes.

Online tool for cleaning double spaces, tabs, empty lines, and extra line breaks in text.

Online tool for counting paragraphs and analyzing structure in text, articles, newsletters, and documents.

Online tool for removing repeated lines from lists, emails, SKUs, logs, spreadsheets, and text exports.

Online tool for removing repeated words while keeping the first occurrence.

Online tool for removing emoji, emoticons, flags, and emoji modifiers from text.

Online tool for removing empty lines and whitespace-only lines from text, lists, and exports.

Online tool for removing punctuation marks from text with configurable exceptions.

Online tool for reversing line order in lists, logs, CSV, and multiline text.

Online tool for reversing text, lines, words, and characters back to front.

Online tool for changing word order in text, lines, and sentences.

Online tool for ROT13 encoding and decoding Latin letters.

Online tool for counting sentences and analyzing phrase length in text.

Online tool for randomly shuffling lines, lists, participants, options, and text data.

Online tool for creating SEO-friendly URLs from headlines, product names, articles, and page titles.

Online tool for counting SMS length, segment count, and detecting GSM-7 or UCS-2 encoding.

Online tool for sorting text lines alphabetically, numerically, and with locale-aware ordering.

Online tool for sorting words alphabetically in text, lines, and sentences.

Online tool for replacing leading spaces with tab characters and configuring indent size.

Online tool for inserting a separator between lines in a list, text, post, or publication.

Online tool for removing HTML tags and extracting plain text from HTML fragments.

Online tool for replacing tab characters with spaces and configuring indent size.

Online tool for changing text case: uppercase, lowercase, title case, camelCase, snake_case, kebab-case, and other formats.

Online tool for line-by-line comparison of two text versions: contracts, articles, configs, or documents.

Online tool for removing extra spaces at the edges of text, lines, and multiline lists.

Online tool for encoding characters to Unicode escape sequences and decoding \uXXXX back to text.

Online tool for building a list of unique words from text, articles, SEO copy, or exports.

Online tool for capitalizing the first letter of sentences after periods, questions, exclamations, and ellipses.

Online tool for URL encode and URL decode. Encode and decode links, parameters, and strings directly in your browser.

Online word counter with uniqueness analysis, repeats, and word frequency in text.

Online tool for wrapping long lines to a chosen width without extra formatting.

Add a border with chosen thickness, color, and style around an image directly in your browser.

Add padding around an image and set background color directly in your browser.

Adjust brightness, contrast, and basic image correction directly in your browser.

Decode Base64 or data URI to an image with preview and file download in your browser.

Blur the entire image or a selected area directly in your browser.

Square 1:1 crop for avatars, Instagram, icons, product cards, and profile images.

Crop an image to 16:9 for covers, banners, video previews, presentations, and wide layouts.

Crop an image to classic 4:3 for photos, documents, presentations, catalogs, and websites.

Vertical 4:5 crop for social media, product cards, posts, mobile-first content, and visuals.

Horizontal 5:4 crop for cards, previews, catalogs, websites, presentations, and visuals.

Upload a logo or image and get a full favicon set: ICO, PNG icons, apple-touch-icon, manifest, and HTML tags.

Flip JPG, PNG, and WebP horizontally or vertically directly in your browser.

Convert an image to grayscale directly in your browser.

Convert HEIC/HEIF photos from iPhone to JPG in the browser or on the server.

Convert HEIC/HEIF photos from iPhone to PNG in the browser or on the server.

Add border-radius to an image and save with a transparent background.

Pick a pixel on an image and get the color in HEX, RGB, HSL, and CSS formats.

Compress JPG, PNG, and WebP with quality settings directly in your browser.

Crop JPG, PNG, and WebP online with 1:1, 4:3, 16:9 presets and a free crop frame.

Check image width, height, file size, and aspect ratio directly in your browser.

View EXIF, GPS, capture date, camera, and image metadata directly in your browser.

Convert JPG, PNG, WebP, and AVIF with the Canvas API directly in your browser.

Extract dominant colors from an image in HEX, RGB, HSL, and CSS formats.

Create a placeholder image of the size you need with a label for layouts, mockups, and tests.

Resize JPG, PNG, and WebP by width and height in pixels directly in your browser.

Encode PNG, JPG, WebP, and SVG to Base64 or data URI directly in your browser.

Convert an image to a data:image string for inline HTML, CSS, JSON, and email.

Create a favicon .ico from PNG, JPG, or WebP directly in your browser.

Invert image colors and create a negative effect directly in your browser.

Compress an image to a target file size in KB directly in your browser.

Join two images into one horizontal row directly in your browser.

Hide faces, numbers, and private data with pixels directly in your browser.

Remove EXIF, GPS, and metadata from images directly in your browser.

Rotate JPG, PNG, and WebP by 90°, 180°, or a custom angle in your browser.

Add a warm vintage sepia effect to an image directly in your browser.

Increase image sharpness directly in your browser without uploading to a server.

Add a text caption or watermark to an image directly in your browser.

Check whether a PNG/WebP image has an alpha channel and transparent pixels.

Sort, align, and validate .env variables in KEY=VALUE format, detect duplicates, and generate .env.example files.

Generate a .gitignore file with presets for Node.js, Python, Docker, IDEs, and operating systems.

Generate .htpasswd entries with a username and hashed password for nginx and Apache Basic Auth.

Encode UTF-8 text to binary byte groups, decode binary back to text, and inspect bytes in binary, decimal, hex, and ASCII.

Create a cron expression from presets and clear schedule settings without memorizing the order of cron fields.

Decode cron expressions, inspect each field, and preview upcoming run times without guessing the schedule.

Format or minify CSS with indentation, media query support, CSS variable preservation, and comment options.

Convert CSV tables to a JSON array of objects or array of arrays with configurable delimiter and header options.

Parse a cURL command into method, URL, headers, query params, body, auth, cookies, and generate a fetch snippet.

Generate a secure SECRET_KEY for Django projects using the Django-compatible charset, with output formats for .env and settings.py.

Escape text as a JSON string literal by encoding quotes, backslashes, newlines, and special characters.

Encode UTF-8 text to hex bytes and decode hex back to text, with byte preview, prefix options, and case settings.

Format or minify HTML markup with configurable indentation, attribute wrapping, and comment preservation.

Quick reference for HTTP status codes with descriptions, usage scenarios, and JSON response examples.

Format or minify JavaScript code with configurable indentation, line breaks, and comment handling for snippets and DevTools output.

Format, minify, and inspect JSON structure with indent controls, key sorting, and a visual tree view.

Compress JSON to a single line by removing all unnecessary whitespace without changing the data.

Attempt to fix common JSON errors — trailing commas, single quotes, comments, and unquoted keys — and validate the result.

Convert a JSON array of objects to CSV for Excel, Google Sheets, no-code tools, and data imports.

Convert JSON objects to XML with a configurable root tag, array element names, attributes, and indentation.

Convert JSON objects and API responses to YAML for Helm, Ansible, Kubernetes, Docker Compose, and CI/CD configs.

Check JSON syntax and pinpoint errors by line and column before deploying to production.

Decode JWT header and payload from base64url and inspect claims without verifying the signature.

Compute an MD5 hash of text in hex or Base64 for legacy systems, checksum verification, and compatibility testing.

Generate short URL-safe Nano ID identifiers with configurable length, count, and alphabet.

Test JavaScript regular expressions against text with flags, capture groups, named groups, and match highlighting.

Generate a robots.txt file with User-agent, Allow, Disallow, and Sitemap directives for basic crawl control.

Parse semantic version strings, prerelease tags, build metadata, and package.json ranges like ^1.2.3 and ~1.2.3.

Compute a SHA-1 hash of text in hex or Base64 for legacy APIs, checksum verification, and compatibility.

Compute a SHA-256 hash of any text using the browser Web Crypto API, with output in hex, Base64, or Base64URL.

Format SQL queries with keyword line breaks, indentation, dialect settings, and keyword case control.

Generate time-sortable ULID identifiers for logs, events, APIs, queues, and distributed systems.

Decode a JSON-escaped string back to readable plain text by reversing escape sequences.

Convert Unix timestamps to human-readable dates and dates back to timestamps in seconds, milliseconds, UTC, local time, and ISO 8601.

Parse, validate, and rebuild URLs with UTM tracking parameters for ad campaigns and analytics.

Generate random UUID v4 identifiers using the browser crypto API for databases, tests, APIs, and correlation IDs.

Format and minify XML with indentation for SOAP responses, RSS feeds, sitemaps, API payloads, and configs.

Convert XML documents and fragments to JSON for APIs, SOAP, RSS, sitemaps, configs, and dev tasks.

Check XML for well-formedness and pinpoint unclosed tags, nesting errors, and unescaped characters by line and column.

Format YAML configs with consistent indentation, basic syntax checking, and clear error messages.

Convert YAML configs and fragments to JSON for APIs, Postman, webhooks, tests, and documentation.

Validate YAML syntax and pinpoint errors by line and column for Kubernetes, Docker Compose, and CI/CD configs.

Create Code 128 barcodes for SKUs, orders, warehouse labels, logistics, serial numbers, and internal codes with PNG, SVG, or PDF export.

Generate Code 39 barcodes for industrial and warehouse labels — digits, letters A–Z, and selected symbols.

Generate test JSON data for API mocks, frontend development, Postman, Swagger examples, prototypes, and demos.

Create a product EAN-13 barcode from 12 or 13 digits with automatic check digit calculation and PNG, SVG, or PDF export.

Create a strong password with custom length, character sets, and complexity directly in your browser.

Find emails, phone numbers, and other personal data in text directly in your browser.

Create one or more numeric PIN codes for temporary access, demo accounts, tests, and local workflows.

Create a QR code for a link, text, email, phone number, SMS, Wi-Fi, or vCard — free and without registration.

Create harmonious color palettes for UI, branding, and websites: HEX, RGB, HSL, OKLCH, CSS variables, and Tailwind.

Generate random integers in a custom range for giveaways, raffles, test data, and quick decisions.

Generate a random string of letters, digits, and symbols directly in your browser.

Create a correct canonical tag for a page, normalize the URL, and copy ready-made HTML for head, layout, or site templates.

Remove #hashtags from post, listing, or description text in your browser.

Check listing text length: characters, words, lines, paragraphs, read time, and platform limits.

Find and copy unique #hashtags from a post, listing, or description.

Write a polite first reply to a buyer for a listing, sale, or giveaway.

Write a clear free-giveaway listing to hand off items with less back-and-forth.

Build a short, clear title for selling electronics on classified sites and marketplaces.

Build a clear listing title for selling furniture: sofas, wardrobes, tables, beds, kitchens, or chairs.

Check a page description before publishing: character count, approximate snippet width, truncation risk, and text quality for search results.

Paste page, article, or product text to find frequent words and phrases, remove stop words, and get a draft keyword list.

Write a polite line for your listing: sale only, no trades.

Create og:title, og:description, og:url, og:image, and other Open Graph tags for link previews in social networks and messengers.

Write a clear pickup-only phrase for a listing, sale, or free giveaway.

Write a calm reply when an item is sold, reserved, or the terms do not fit.

Create a short, clear call to action for posts, listings, Telegram, social feeds, landing pages, or email.

Fix listing text case and remove excessive CAPS LOCK from titles and descriptions.

Clean listing text from extra emoji, decorative symbols, and visual clutter in your browser.

Check a page title before publishing: character count, approximate snippet width, readability, and truncation risk in search results.

Build a short profile bio from keywords for social networks, Telegram, portfolios, and marketplaces.

Shorten a long listing into a Telegram-friendly post in your browser.

Create an XML sitemap from a list of pages, validate URLs, and download sitemap.xml for your site or webmaster tools.

Split long text into parts by character limit without breaking words, paragraphs, or sentences.

Prepare text for Telegram: paragraphs, line breaks, lists, hashtags, and readable post structure.

Shorten text to the Telegram 4096-character limit and keep the main message.

Build a link with UTM parameters for ads, newsletters, social posts, and analytics.

Shorten text for VK to a chosen limit while keeping meaning, structure, and readability.

Generate YouTube video title ideas from topic, keywords, and video style.

Convert a Word DOCX file to plain text without formatting.

Get the text content of a PDF for copying, editing, quoting, and SEO.

Combine JPG, PNG, and WebP images into one PDF document and control page order.

Combine multiple PDF documents into one file and control the page order before download.

Find out how many pages are in a PDF file online.

Remove selected pages from a PDF document and download a new file.

Rotate PDF pages by 90°, 180°, or 270° and download the corrected file.

Split a PDF into separate pages or page ranges and download the result as a ZIP archive.

Calculate age from date of birth: full years, months, days, and the next birthday date.

Build CSS border-radius for cards, buttons, inputs, badges, modals, avatars, and design systems.

Build CSS box-shadow with live preview, presets, offset, blur, spread, color, opacity, and inset shadows.

Create a CSS linear-gradient with colors, angle, and live preview directly in your browser.

Enter a start and end date to see the difference in calendar days, business days, weeks, months, and a clear interval breakdown.

Calculate the final price after a percentage discount, the savings amount, and a clean result for promotions or listings.

Convert colors between HEX, RGB, RGBA, and HSL directly in your browser.

Quickly calculate N% of a number, discounted price, markup, tax, percent change, and the difference between two numbers.

Convert length, weight, and temperature between common metric and imperial units.

Calculate amount excluding VAT, VAT amount, and total with VAT for invoices, contrquotes, and accounting.

Paste an email address or text containing addresses — the tool finds emails, checks format, and shows errors, duplicates, and suggestions.

Fill in name, job title, company, and contacts — get a ready email signature in plain text, HTML, Markdown, and compact format.

Enter an email subject — the tool shows character count, truncation risk, inbox preview, and suggestions to improve the subject line.

Compose a polite follow-up email after a meeting, call, or proposal.

Create a mailto link with recipient, subject, and message body directly in your browser.

Paste email text — the tool normalizes line breaks, paragraphs, quotes, signatures, and extra spaces directly in your browser.