File Tools | Image Compress, Format Conversion, PDF Split, Merge and Watermark

JSON Formatter Format, minify, validate, and inspect JSON with error positioning for API responses, config files, and debugging logs. Data

JSON Diff Compare two JSON documents with a git-style side-by-side or unified view, structural change list keyed by JSON Path, and word-level diff for long strings. Data

JSON Converter Convert JSON to YAML, XML, CSV, TOML, JavaScript object literals, and PHP arrays locally with format-specific conversion options. Data

YAML Converter Convert YAML to JSON, TOML, XML, JavaScript objects, or PHP arrays. Multi-document YAML merges into a JSON array, anchors and aliases expand by default, and common traps such as the Norway problem, version-as-float, and tab indentation surface as hints. Data

SQL Formatter Beautify, indent, and normalize SQL across MySQL, PostgreSQL, SQLite, BigQuery, Snowflake, and many other dialects. Data

CSS Minifier Minify CSS with a real parser that strips comments and whitespace, shortens values, and can merge rules, with live gzip size. Data

JavaScript Minifier Minify JavaScript with Terser to compress, mangle local names, and drop dead code, with live gzip size and a saved percentage. Data

CSV Tools View, edit, parse, and export CSV in the browser with delimiter, quoting, escaping, table preview, and JSON conversion support. Data

Number Base Converter Convert numbers between binary, octal, decimal, hexadecimal, and any base from 2 to 36 in the browser, with support for negatives, big integers, prefixes, and grouped output. Data

Unit Converter Convert between common units across 20+ physics and engineering categories including length, mass, duration, temperature, area, volume, speed, pressure, energy, power, information, frequency, and electrical quantities. Data

Map Coordinate Converter Convert a coordinate between WGS84, GCJ-02 (Amap/Tencent), BD-09 (Baidu), Web Mercator, CGCS2000, and global EPSG systems, with every target shown at once. Data

Image Compressor Compress JPEG, PNG, and WebP images locally for hero images, product photos, article assets, and batch media delivery. File

Image Converter Convert JPEG, PNG, and WebP into WebP, JPEG, PNG, AVIF, or lossless optimized PNG in the browser. Compare output size and keep originals safe. File

Image to Base64 Encode images to Base64 text locally in the browser. Switch the same result between Data URL, raw Base64, CSS, HTML, and Markdown output. File

Base64 to Image Decode Base64, Data URL, CSS, HTML, or Markdown image payloads back to a real image in the browser. Auto-detects MIME and supports preview and download. File

Image Metadata Viewer Read EXIF, GPS, IPTC, XMP, and ICC metadata locally in the browser. Grouped readable view, raw JSON view, and JSON copy and download. File

EXIF Remover Strip EXIF, GPS, camera model, capture time, and XMP metadata from JPG, PNG, and WebP images locally in the browser before publishing. File

PDF Merge Free online PDF merger — combine multiple PDFs into one. Drag to reorder, custom filename, all local in your browser. No upload, no signup, no watermark. File

PDF Split Free online PDF splitter — split one PDF into many by page ranges, every N pages, or single pages. Local in-browser processing, no upload, ZIP download. File

PDF Watermark Add text or image watermarks to PDFs in your browser. Adjustable opacity, rotation, color, font size, 9-grid positioning, tiling, and Chinese / Japanese fonts. File

Organize PDF Organize PDF pages with thumbnails. Delete, reorder, rotate, and extract selected pages in the browser without uploading the file. File

PDF to Image Render every page of a PDF to PNG, JPG, or WebP using pdf.js. Adjustable DPI, export ranges, JPG quality, and PNG transparency — all in your browser. File

Compress PDF Shrink PDFs in your browser. Two modes: structure compression keeps text and bookmarks (5-20% savings), or rasterize pages to JPEG (50-90%). Presets plus DPI and quality sliders. File

Encrypt & Decrypt PDF Set an open password on a PDF, or remove an existing password when you already know it. Runs entirely in the browser without uploading the file. File

Base64 Encoder and Decoder Encode and decode UTF-8 text, JSON, JWT segments, Basic Auth values, and URL-safe Base64 locally in your browser. Encode

URL Encoder and Decoder Encode and decode URL percent-encoding for values, full URLs, query parameters, and form-style spaces during API debugging, callback checks, and log cleanup. Encode

HTML Encoder and Decoder Encode and decode HTML entities for template text, attribute values, rich text, email source, CMS content, and log fields. Encode

Morse Code Converter Convert text to and from International Morse in the browser. Auto direction detection, Web Audio playback, Farnsworth spacing, screen flash sync, WAV export, plus key-the-code and listen-and-type practice drills. Encode

QR Code Generator Generate URL, text, Wi-Fi, email, phone, SMS, and vCard QR codes with logo, transparent background, gradients, Hex colors, error correction, and multiple downloads. Encode

QR Code Decoder Decode QR codes from images, screenshots, clipboard, camera, or screen capture. Batch-process many files, decode multiple QRs in a single image, parse Wi-Fi, vCard, email, SMS, geo, and calendar payloads, and export .vcf, .ics, annotated PNG, or bulk JSON / CSV. Encode

Barcode Generator Generate 1D and 2D barcodes such as Code128, Code39, EAN, UPC, ITF-14, PDF417, and Data Matrix with validation hints, a live preview, and PNG, SVG, or JPG export. Encode

Barcode Decoder Decode Code 128, Code 39, EAN, UPC, ITF, Codabar, PDF417, Data Matrix, Aztec, and other barcode images with upload, paste, camera scanning, inversion and upscaling retries, plus JSON and CSV export. Encode

Text Counter Count characters, words, sentences, paragraphs, lines, UTF-8 bytes, and reading time for content limits, API fields, and multilingual copy checks. Text

Case Converter Convert headings, identifiers, slugs, and config keys between UPPER, lower, Capitalized, inverse, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, and path/case. Text

Text Replace Find and replace text with plain matching, case-sensitive matching, global replacement, and regex replacement for copy, config snippets, and logs. Text

Text Cleaner Clean extra blank lines, repeated blank lines, leading and trailing whitespace, and trailing spaces from pasted text, logs, and drafts. Text

Text Compare Compare two plain-text blocks, highlight added, removed, and edited lines, and call out word-level changes inside the line. Text

Line Tools Process multiline text with line deduplication, sorting, numbering, prefix/suffix insertion, filtering, joining, splitting, and per-line regex replacement. Text

Regex Tester Test JavaScript regular expressions live with match highlighting, capture groups, replacement preview, split output, ReDoS detection, and multi-language code export. Text

Timestamp Converter Convert Unix seconds, milliseconds, readable date-time text, ISO/UTC values, and timezone-aware time formats. Time

Timezone Converter Convert one source time into multiple target timezones with UTC offsets, abbreviations, and date-boundary notes. Time

Date Calculator Calculate date differences, add or subtract dates, measure exact duration, and count business days or weekends. Time

World Clock View current local time, UTC offsets, timezone abbreviations, and date-boundary notes for global cities. Time

Cron Expression Tool Parse, build, and explain cron expressions locally in the browser, preview upcoming runs in any timezone, and use templates, a visual builder, local history, and TXT, CSV, JSON exports. Time

JWT Inspector Decode a JSON Web Token in the browser to read its header, payload, and claims, then verify or re-sign it with HMAC, RSA, ECDSA, or EdDSA keys. Security

Password Generator Generate random passwords, memorable passphrases, and PINs locally with length, character groups, custom symbol sets, similar-character filtering, and strength scoring. Security

Hash Generator Generate text and file hash digests with SHA-256, SHA-512, SHA3, BLAKE3, MD5, CRC, and xxHash for integrity checks, release verification, and data fingerprints. Security

HMAC Generator Create HMAC-SHA256, HMAC-SHA512, and other keyed message authentication codes for API authentication, webhook verification, tamper checks, and file signature comparison. Security

File Encryption Encrypt and decrypt any file locally with a password using AES-256-GCM, PBKDF2 key derivation, built-in integrity verification, password strength feedback, and chunked progress for archival, transfer, and cloud upload protection. Security

Chmod Calculator Compute Unix file permissions with a visual rwx matrix and read the octal, symbolic, and chmod command at once. Handles setuid, setgid, and the sticky bit, applies symbolic operations like u+x or go-w, resolves umask values, and flags risky settings. Security

User-Agent Parser Parse a User-Agent string into browser, operating system, device, rendering engine, app context, and bot signals. Network

URL Tools Parse URL structure, convert query strings to JSON, normalize canonical variants, strip tracking parameters, and run a quick safety review for. Network

HTTP Message Parser Detects raw HTTP messages, cURL commands, and fetch snippets, unpacks the request line, status, headers, query, cookies, and body into a structured view, and re-emits the same call as thirty-plus client formats and target languages. Network

Subnet Calculator Calculate IPv4 subnet masks, network addresses, broadcast addresses, usable host ranges, and address counts from an IP and CIDR prefix. Network

IP Address Converter Detect IPv4, IPv6, IPv4-mapped IPv6, and integer IPs, convert between dotted decimal, integer, hex, binary, and compressed IPv6, and build reverse DNS names. Network

Browser Compatibility Detector Test the current browser for real support across web APIs, CSS, JavaScript, media, storage, security context, and device capabilities. Network

ID Generator Generate browser-local UUIDs, random strings, numeric IDs, timestamp IDs, and custom rule IDs with prefix, suffix, batch copy, and TXT, CSV, JSON downloads. Generator

Random Number Generator Generate random integers, decimals, dice roll totals, and arithmetic sequences with range, count, precision, duplicate, sorting, copy, TXT, JSON, and CSV export controls. Generator

Random String Generator Generate random strings, word slugs, sentences, paragraphs, and template-based codes with character sets, casing, separators, copy, TXT, JSON, and CSV export controls. Generator

Fake Data Generator Build structured JSON fake data with nested fields, arrays, locale-aware Faker rules, enums, ranges, nullable values, copy, JSON download, and reusable config import/export. Generator

Color Converter Convert colors between HEX, RGB, HSL, and other formats for design, frontend development, and consistent visual presentation. Design

Gradient Generator Create visually appealing CSS gradients with custom colors, directions, and opacity for UI elements, backgrounds, and branding designs. Design

Contrast Checker Check text, icons, buttons, and UI component contrast against WCAG AA and AAA accessibility requirements. Design

Palette Generator Generate OKLCH color scales, color schemes, neutral palettes, readable text colors, CSS variables, and JSON from one base color. Design

HTTP Status Code Reference Search HTTP status codes by number, phrase, category, source, and troubleshooting context for APIs, websites, proxies, CDNs, redirects, authentication errors, rate limits, and gateway failures. Reference

Port Reference Search common TCP and UDP ports by number, protocol, service name, risk level, and exposure guidance for network configuration, firewall review, debugging, and security auditing. Reference

File

Image Compressor

Image Converter

Image to Base64

Base64 to Image

Image Metadata Viewer

EXIF Remover

PDF Merge

PDF Split

PDF Watermark

Organize PDF

PDF to Image

Compress PDF

Encrypt & Decrypt PDF

About this category

Local-first processing

PDF split, merge, and organize

Common image formats

Metadata inspection and cleanup