CrateX.app

Password Generator

Password generator for secure random passwords with custom length, character sets, confusing-character exclusions, and zxcvbn-based strength analysis for accounts, admin panels, Wi-Fi credentials, and rotation policies.

QR Code Generator

QR code generator for URLs, Wi-Fi, contacts, email, SMS, and plain text with logo, color, size, error correction, and PNG/JPG/SVG export.

QR Decoder

QR decoder for uploaded PNG, JPEG, WebP, AVIF, HEIC, and HEIF images, with stable ordering for single and multiple codes.

Unit Converter

Unit Converter: Supports conversion between Metric, Imperial, and US units, covering 13 categories including length, weight, temperature, area, volume, time, speed, pressure, energy, power, storage, angle, and frequency. Provides real-time precise calculations and scientific notation, suitable for engineering, research, and daily use.

Timestamp Converter

Timestamp Converter: Supports conversion between Unix timestamps and dates, automatically detecting seconds/milliseconds. Provides local, UTC, and global city timezone conversions, supporting ISO 8601, RFC 2822, SQL, and other formats. Suitable for log analysis, development debugging, and database maintenance.

World Clock

World Clock: Supports tracking local time in multiple cities worldwide, automatically handling Daylight Saving Time transitions. Offers digital and analog clock modes, supports 24-hour format and second-level display, suitable for cross-timezone collaboration and schedule planning.

UUID Generator

UUID Generator: Generate UUID v1 and v4 in batches with options for case, hyphens, and quantity for database keys, API tokens, and tracing IDs.

Text Counter

Text Counter: Provides text statistics and analysis, including character/word count, word frequency analysis, reading time estimation, and complexity assessment. Supports multilingual detection and character frequency analysis, suitable for social media character limits, SEO optimization, and academic writing

Text Formatter

Text Formatter: Supports text cleaning and format normalization, including merging extra spaces, unifying line breaks, removing empty lines, and paragraph reorganization. Suitable for web copy cleaning, document organization, and cross-platform text normalization

Text Diff Viewer

Text Diff Viewer: Supports text, code, and configuration file comparison with side-by-side and unified view modes. Highlights additions, deletions, and changes line by line, supports synchronized scrolling and one-click swap, suitable for code review, document proofreading, and configuration verification

Case Converter

Case converter for camelCase, snake_case, kebab-case, PascalCase, CONSTANT_CASE, and other naming styles used in variables, CSS classes, URLs, API routes, database fields, and docs.

Markdown Converter

Markdown Converter: Supports bidirectional conversion between Markdown and HTML with real-time preview rendering. Supports GFM extended syntax, code highlighting, KaTeX math formulas, and Mermaid diagrams, suitable for document writing, blog publishing, and email rich text generation

URL Encode/Decode

URL Encode/Decode: Supports URL percent encoding and decoding, handling special characters, spaces, and multilingual text. Auto-detects encoding format, supports query parameter processing, suitable for API calls, form submissions, and link sharing.

URL Parser

URL Parser: Parse common hierarchical URLs (for example, https://example.com/path) into structured fields such as protocol, hostname, port, and path. Edit query parameters individually and preview the assembled URL in real time. Useful for API debugging, link analysis, and parameter tuning.

Base64 Encode/Decode

Base64 Encode/Decode: Encode and decode Base64 for text and images with UTF-8, URL-safe, MIME, Data URL, and raw Base64 workflows.

HTML Escape/Unescape

HTML Escape/Unescape: Supports HTML entity escaping and unescaping, handling special characters and tags. Auto-detects named and numeric entity formats, prevents XSS attacks, suitable for displaying user input, code examples, and secure content processing.

Unicode Converter

Unicode converter for bidirectional conversion between characters and Unicode code points, with emoji, surrogate pair, and multilingual text handling plus auto-detection for U+, \u, 0x, and decimal formats.

ASCII Converter

ASCII Converter: Supports bidirectional conversion between characters and ASCII codes, displaying decimal, hexadecimal, binary, and octal values in real-time. Supports batch conversion and control character parsing, suitable for programming development, communication protocol analysis, and teaching demonstrations.

Base Converter

Base converter for binary, octal, decimal, and hexadecimal numbers with automatic 0b/0o/0x prefix detection, instant linked updates, and bitwise debugging workflows.

JSON Formatter

JSON Formatter: Format, validate, beautify, and minify JSON with real-time syntax checks, line-and-column error hints, key sorting, and custom indentation for API payloads, config files, logs, and debugging workflows.

JSON to TypeScript

JSON to TypeScript: Convert JSON samples into TypeScript interfaces and type aliases. Automatically merges object-array fields, infers optional fields and null unions, and generates suitable type declarations for empty arrays and empty objects. Useful for API response modeling, frontend type bootstrapping, and data structure organization.

JSON ↔ YAML Converter

JSON YAML converter with side-by-side editing, instant bidirectional sync, indent control, key sorting, and multi-document YAML splitting for Kubernetes, Helm, CI configs, and API debugging.

JSON ↔ CSV Converter

JSON CSV converter for CSV/TSV and JSON with delimiter auto-detection, header row mapping, field trimming, and empty line skipping for data import/export, spreadsheet processing, and API payload preparation.

JWT Decoder

JWT Decoder: Parse JWT tokens to view Header and Payload content, visually check expiration and issuance times.

Regex Tester

Regex Tester: Test regular expressions with real-time matching, flag controls, capture groups, named groups, and instant replacement preview. Includes performance risk detection and timeout protection — ideal for pattern validation, text extraction, and batch replacement

Hash Checksum

Hash Checksum: Generate SHA-256/SHA-512/SHA-1 hashes for text or files. Compare with expected checksums to quickly verify file integrity. No file size limit

CSS Unit Converter

CSS unit converter for px, em, rem, %, vw, vh, and pt with responsive breakpoint settings and context-aware calculations for frontend implementation and layout tuning.

Color Converter

Color converter for HEX, RGB, HSL, and CMYK with live preview, color picker, and synchronized values for design handoff, CSS styling, and palette checks.

Lorem Generator

Lorem Generator: Generates Lorem Ipsum placeholder text, supporting custom paragraph, word, or character counts. Provides a start sentence option, suitable for layout testing, prototype filling, and content placeholder

Cron Expression Parser

Cron Expression Parser: Parse cron expressions to visualize next N execution times. Supports standard 5/6/7-field formats, timezone switching, common presets, and human-readable descriptions. Ideal for debugging crontab, CI/CD pipelines, and scheduled tasks

Image Format Converter

Image Format Converter: Convert between WebP, PNG, JPEG, AVIF formats, compatible with HEIC/SVG uploads. Quality adjustment and batch processing.

Image Resizer

Image Resizer: Batch resize images by width, height or ratio, multiple scaling modes supported, ZIP download.

Image Compressor

Image Compressor: Compress images and photos in batches with quality control, max edge limits, and metadata removal. Supports PNG/JPEG/WebP/AVIF/HEIC/HEIF input and ZIP download.

Image Cropper

Image Cropper: Supports drag selection, precise pixel input, aspect ratio lock, rotation, flip, multiple shape crops. Exports as PNG.

Image Watermarker

Image Watermarker: Batch add text/logo watermarks to images, single/tiled layout, rotation, opacity, ZIP download.

Image Merger

Image Merger: Merge multiple images into one, vertical/horizontal/grid modes, adjustable spacing, background color, alignment.

Long Screenshot Stitcher

Long Screenshot Stitcher: Stitch scrolling screenshots into one long image with overlap removal and overlap fine-tuning.

Image Color Picker & Palette

Image Color Picker & Palette: Click to pick colors from image, auto-extract dominant colors and palette, copy HEX/RGB and export CSS variables. Supports PNG, JPG/JPEG, WebP, AVIF, HEIC/HEIF.

Image Metadata Cleaner

Image Metadata Cleaner: View image EXIF (including GPS) and export a clean copy to reduce exposure of sensitive information like location.

Image Redaction Tool

Image redactor for blur, mosaic, and solid masks on sensitive image areas using rectangles or brush strokes, with individual exports and batch ZIP output.