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Data & Formats
6 matching tools
JSON Formatter
Format, minify, validate, and copy JSON locally.
JSON Validator
Check JSON validity and get friendly parse errors.
YAML Formatter
Parse and normalize YAML documents in your browser.
YAML <-> JSON Converter
Convert YAML to JSON and JSON back to YAML.
URL Parser
Inspect protocol, host, path, hash, and query parameters.
Timestamp Converter
Convert Unix seconds or milliseconds into readable dates.
Encoding & Security
5 matching tools
Base64 Encode/Decode
Unicode-safe Base64 conversion for text.
Hash Generator
Generate SHA hashes and legacy MD5 checksums for text and files.
JWT Decoder
Decode JWT header and payload without verifying signature.
JWT Encoder
Create unsigned or HS256-signed JWTs locally in your browser.
UUID Generator
Generate secure random UUID v4 values.
Text Tools
10 matching tools
Word/Character Counter
Count words, characters, lines, paragraphs, and reading time.
Clean Extra Spaces
Trim lines, collapse spaces, and normalize line endings.
Change Case
Convert text between common naming and writing cases.
Transliteration
Convert Cyrillic text to Latin characters.
Slug Generator
Create clean URL slugs from human text.
Text Diff
Text-focused line diff using the same local engine.
Remove Duplicate Lines
Deduplicate lines with trim and case options.
Sort Lines
Sort text lines alphabetically or numerically.
Extract Emails/URLs
Pull email addresses and links from pasted text.
Lorem Ipsum Generator
Generate words, sentences, or paragraphs of placeholder copy.
File Tools
6 matching tools
MIME Type Viewer
Inspect file metadata and basic magic-byte signatures.
File Size Converter
Convert bytes into decimal and binary units.
File Checksum Generator
Generate SHA checksums for local files.
Compare Two Files
Compare metadata, SHA-256 checksums, and text diffs.
Batch Rename Preview
Preview file rename patterns and export CSV.
Generate Checksum File
Create a checksums.sha256.txt file for selected files.
Image Tools
9 matching tools
Resize Images
Resize images with aspect-ratio control and export.
Compress PNG/JPEG/WebP
Compress browser-supported images and compare sizes.
Convert Images
Convert images to PNG, JPEG, or WebP with preview.
PNG to SVG Converter
Wrap PNGs in SVG or create a simple pixel-vector mosaic.
Crop Image
Crop images with aspect presets and export the result.
Remove Image Metadata
Read EXIF when available and re-encode a cleaned image.
Generate Favicon Set
Generate common favicon PNG sizes and HTML tags.
Extract Color Palette
Sample dominant colors from an uploaded image.
Placeholder Generator
Create PNG or SVG placeholder images.
Developer Utilities
5 matching tools
Regex Tester
Test patterns, flags, match indexes, and groups.
Regex Builder
Build common regular expressions from readable options.
Markdown Preview
Preview Markdown with GFM and sanitized output.
Rich Text to Markdown
Convert pasted rich text or HTML into Markdown locally.
Diff Checker
Compare two snippets with line-level highlighting.