All tools
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Images
- Image Compressor Online Client-side WebP, JPEG, PNG compression with quality slider, resolution scaling, before/after preview, and byte savings calculation.
- Image Resizer Online Resize image dimensions and aspect ratios, social presets (1:1, 16:9, 9:16, 4:5, 4:3), 90° rotation, flip, and format selection.
- Convert Image to WebP Online Convert JPG, PNG, and GIF images to next-gen WebP format client-side to boost website loading speed and PageSpeed scores.
- Resize Image for Instagram Instantly resize images for Instagram: 1:1 Square (1080x1080), 4:5 Portrait post (1080x1350), and 9:16 Stories/Reels (1080x1920).
- Image Color Palette Extractor Extract dominant color palette from images in HEX, RGB, HSL with WCAG 2.2 contrast validation and instant CSS/JSON export.
- SVG Optimizer & PNG Exporter Minify and sanitize SVG code by stripping editor metadata, rounding path decimals, and exporting to crisp PNG at 1x, 2x, and 4x scales.
- EXIF Viewer & Remover Show photo metadata (camera, date, GPS) and save a clean copy without EXIF before posting online.
- QR Code Scanner Read QR codes from an image, screenshot or phone camera in the browser. Links open only when you tap them.
- HEIC to JPG Converter Convert iPhone photos (HEIC/HEIF) to JPG or PNG in bulk right in your browser — no uploads.
- Image Converter: JPG, PNG, WebP Convert images between JPG, PNG, WebP and AVIF with quality control and a background for transparency.
- Favicon Generator Make favicon.ico and site icons from an image, emoji or letters — with ready-to-paste HTML.
- Aspect Ratio Calculator & Resolution Scaler Calculate screen and photo proportions (16:9, 4:3, 1:1, 9:16): find aspect ratio and scale dimensions proportionally.
- SVG to PNG & WebP Converter Convert SVG vector graphics to crisp raster PNG or WebP with up to 8x scaling and background options.
- Image Cropper & Aspect Ratio Tool Crop photos directly in browser with 1:1, 16:9, 4:3, 9:16 aspect ratio presets or custom freeform crop frames.
- PDF Merger Online Merge multiple PDF documents into a single file locally in browser using pdf-lib with 100% data privacy.
- PDF Splitter Online Split PDF files into individual pages or custom ranges with export to single PDF or ZIP archive client-side.
- PDF Watermark Free Online Stamp PDF pages with custom watermarks, sample marks, or confidential notices. Adjust rotation angle, opacity, and color client-side.
- JPG to PDF: Images to PDF Combine photos and scans into one PDF: page order, A4 or fit-to-image size, margins.
- PDF to JPG: Pages to Images Turn PDF pages into JPG or PNG images with adjustable quality and download them as one ZIP.
- PDF to Word (DOCX) Converter Online Convert PDF documents to editable Microsoft Word (.docx) files entirely in your browser with zero server uploads.
Text
- Markdown to HTML Live Editor Dual-pane live Markdown to HTML editor with instant preview, README templates, word count, and file export.
- Text Cleaner & Deduplicator Remove duplicate lines, strip empty rows, sort alphabetically A-Z, trim whitespace, and count unique items.
- Text Diff & Document Compare Line-by-line comparison of two text versions, contracts, or code with highlighted insertions and deletions.
- Word, Character & Reading Counter Count characters (with/without spaces), words, lines, paragraphs, and estimate reading time for content.
- Case Converter Transform text casing: UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, and invert.
- Transliteration & SEO Slug Transliterate Cyrillic text to Latin script and generate clean, URL-friendly SEO slugs for articles and pages.
- Lorem Ipsum Generator Generate classic Lorem Ipsum or Russian placeholder text: paragraphs, sentences, words, optional HTML.
- Morse Code Translator Translate text to Morse code and back (Latin and Cyrillic) with audio playback.
- Typing Speed Test Test your typing speed (WPM and characters per minute) and accuracy in English or Russian.
- Markdown Table Generator & Editor Interactive visual table builder: insert rows, align columns, paste spreadsheet data, and generate Markdown & HTML tables.
- Word Frequency & Keyword Density Analyzer Analyze word frequency, bigrams, trigrams, and keyword density percentages for SEO copywriting and editorial review.
Developers & SEO
- SQL Formatter & Validator Beautify and format SQL queries, indent clauses, minify to 1 line for PostgreSQL, MySQL, and ClickHouse client-side.
- Color Contrast Checker (WCAG 2.2) Calculate color contrast ratios for text and backgrounds per WCAG 2.2 AA/AAA accessibility standards with live previews.
- Secure Password Generator Cryptographically secure passwords powered by Web Crypto API running 100% locally on your machine.
- JWT Token Decoder & Inspector Inspect and decode JSON Web Tokens locally: inspect header, payload claims, and token expiration dates safely.
- Regular Expression (Regex) Tester Test and debug regex patterns with live match highlights, capture groups, regex flags, and cheatsheets.
- CSS & Tailwind Gradient Generator Visual gradient designer with angle controls, trendy color presets, and 1-click CSS and Tailwind class export.
- JSON Formatter & Validator Format, validate, and minify JSON data with custom indentation (2/4 spaces) and syntax error diagnostics.
- Hash Generator (SHA-256, MD5) Compute SHA-256, SHA-512, SHA-1, and MD5 hashes instantly via Web Crypto API in browser.
- URL Encoder & Decoder Encode and decode URLs, query strings, and UTF-8 characters according to RFC 3986 standards.
- Base64 Encoder & Decoder Encode and decode text to Base64 with full UTF-8 support, convert images and files to embeddable Data URIs.
- Meta Tags & Open Graph Generator Generate Open Graph and Twitter Cards with live visual previews for Telegram, VK, WhatsApp, X, and Next.js/HTML export.
- Robots.txt & Indexing Rules Generator RFC 9309 compliant robots.txt builder with WordPress, Next.js, and Astro presets, AI scraper blocking, and syntax validation.
- PX to REM & Fluid CSS Clamp Calculator Convert PX to REM and back, generate fluid responsive typography CSS clamp() formulas, and explore standard Tailwind scale references.
- UUID / GUID Generator Generate UUID v4 and time-ordered v7 in bulk (up to 1000) with the browser crypto RNG. One-click copy.
- Unix Timestamp Converter Convert Unix time (seconds/milliseconds) to a date and back: current time, ISO 8601, UTC and local time zone.
- Color Converter HEX / RGB / HSL Convert colors between HEX, RGB, HSL and CMYK with live preview, tints and shades, and ready CSS.
- YAML ⇄ JSON Converter Convert YAML to JSON and JSON to YAML with syntax validation and clear error messages.
- HTML Entity Encoder / Decoder Escape and unescape HTML entities, including all non-ASCII characters.
- Number Base Converter Binary, octal, decimal, hexadecimal and any base from 2 to 36. Handles big numbers.
- JSON to TypeScript Interface Generator Convert JSON into strict TypeScript interfaces and type definitions with nested structures and array typing.
- Cron Expression Generator & Explainer Visual Cron expression builder and explainer with human schedule breakdown and next 5 execution dates preview.
- CIDR Subnet Calculator & IPv4 Range Calculate IPv4 CIDR subnets: network address, broadcast, netmask, wildcard mask, usable host range, and total hosts.
- cURL to Code Converter (JS, Python, Go, PHP) Convert cURL commands to idiomatic JavaScript fetch, Node.js, Python requests, Go http, and PHP curl code.
- Linux Chmod Permissions Calculator Interactive Linux chmod permissions calculator: toggle owner, group, and others to generate octal and symbolic values.
- CSV to SQL INSERT Query Generator Generate SQL INSERT queries from CSV data with automatic type detection, dialect options, and multi-row batching.
- Side-by-Side Text & Code Diff Checker Line-by-line comparison of two text blocks or code files with split and unified diff modes, additions, and deletions.
- Docker Run to Docker Compose Converter Convert complex docker run commands with ports, volumes, environment variables, and restart policies into docker-compose.yml.
- HTML & CSS Minifier & Beautifier Minify HTML and CSS code to reduce payload size or beautify with custom indentation directly in browser.
- Mock Data Generator (JSON, CSV, SQL) Generate realistic mock datasets (names, emails, phones, dates, UUIDs) in JSON, CSV, or SQL INSERT formats in browser.
- SSL/TLS X.509 Certificate & CSR Decoder Decode and inspect PEM-encoded X.509 SSL/TLS certificates and CSRs: Common Name, SANs, issuer, validity period, and fingerprints.
- Code-to-Image Beautifier Create beautiful code snippet screenshots with syntax highlighting, macOS/Windows window styles, gradients, and export to PNG, WebP, and SVG.
- Open Graph & Social Preview Generator Design 1200×630 social preview and Open Graph cards for Twitter, Telegram, LinkedIn, and Facebook with 5 design presets, auto text-wrap, and PNG/WebP export.
Finance & data
- VAT Calculator Online (any rate) Add or extract VAT at any rate (22% Russia 2026, 20%, 18%, 10%...), with the amount in words (Russian) for invoices.
- Date & Working Days Calculator Calculate working days and calendar days between dates, add business days to contracts, and check project deadlines.
- CSV to JSON & JSON to CSV Convert spreadsheet CSV data to JSON array and JSON to CSV with auto delimiter detection.
- Currency & Crypto Converter Live and offline multi-currency calculator for CBR fiat, USDT, TON, BTC, ETH, SOL with 1-click Telegram deep link.
- Percentage Calculator Five common calculations: percent of a number, what percent, percentage change, add and subtract percent.
- Loan Calculator with Amortization Annuity and declining-balance payments, total interest and a full monthly schedule with CSV export.
- Discount & Tip Calculator Sale price, stacked discounts, tip amount and splitting the bill between people.
- Compound Interest Calculator with Deposits Calculate investment growth with compound interest, regular monthly/annual deposits, reinvestment frequency, and breakdown tables.
Office
- Batch Folder Structure Creator Create dozens of folders in 1 click from lists. Download a pre-structured ZIP archive or Windows .BAT batch script.
- QR Code & Wi-Fi Generator Generate clean QR codes for URLs, guest office Wi-Fi, and contact cards in high resolution for printing.
- UTM Campaign Builder Build tracked campaign URLs with UTM parameters for Telegram, VK, Yandex, Google Ads, and newsletters.
- Text to Speech Online (TTS) Read text aloud with natural browser voices, customizable speech rate, pitch controls, and live waveform visualization.
- Unit Converter Length, mass, temperature, area, volume, speed, data and time — instant metric/imperial conversion.
- Random Number Generator & Picker Random numbers in a range, pick a winner from a list, shuffle, coin flip and dice — using a crypto RNG.
- Pomodoro Timer Pomodoro 25/5 timer with custom intervals, sound alert, cycle counter and background-tab support.
- Roman Numeral Converter Convert numbers to Roman numerals and back, with validation of the notation.
- Time Zone Converter See what time it is in another city and find a meeting time across several time zones.
- Age Calculator Exact age in years, months and days, days until your next birthday and the weekday you were born.
- BMI Calculator Calculate body mass index from height and weight in metric or imperial units.
- Barcode Generator Create EAN-13, EAN-8, UPC, Code 128 or Code 39 barcodes and download them as PNG or SVG.
- Word (DOCX) to Markdown, HTML & Text Converter Two-way Word converter: parse .docx into clean Markdown/HTML/text or generate native Word documents from text in browser.
- Excel (XLSX, CSV, JSON) Viewer & Converter Open and view Excel spreadsheets (.xlsx, .xls) in browser without MS Office. Search, sort, and export to CSV, JSON, or Markdown.
Online services
- 7-Day Weather Forecast Hourly and weekly forecast for any city by Open-Meteo: temperature, precipitation, wind, sunrise and sunset.
- Public Holidays by Country Official public holidays for 100+ countries for any year (Nager.Date), with calendar export (.ics).
- What Is My IP Address Your public IP, country, city, ISP and time zone, plus browser and screen details.
- User-Agent & Device Hardware Parser Parse User-Agent strings to detect browser version, operating system, device form-factor, rendering engine, and bot status.
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