What's new.

UUID v1: Time-based (MAC address, RFC 9562)

Gregorian timestamp with 100-nanosecond intervals since Oct 15, 1582, combined with a 16-bit clock sequence and 48-bit random node ID. Sortable by generation timestamp.

UUID v2: DCE Security (RFC 9562)

Extends v1, replacing the low 32 bits of the timestamp with a local domain identifier (UID, GID, or organizational domain). Includes 8-bit domain field for security context.

UUID v3: MD5 Name-based (RFC 9562)

Creates deterministic UUIDs from a namespace and name using MD5 hashing. Supports standard namespaces (DNS, URL, OID, X500). Identical inputs always produce identical UUIDs.

UUID v4: Random (existing, improved)

Single and batch generation with proper RFC 4122 variant bits.

UUID v5: SHA-1 Name-based (RFC 9562)

Deterministic UUIDs using SHA-1 instead of MD5. Preferred over v3 for new applications.

UUID v6: Gregorian timestamp, lexicographically sortable (RFC 9562)

Time-based with reordered bits so most significant timestamp bits come first, enabling efficient database indexing and natural sort order.

UUID v7: Unix epoch timestamp (RFC 9562)

Modern timestamp-based UUID using milliseconds since Unix epoch (48 bits) with 12 bits of random data. Sortable with millisecond precision, ideal for database primary keys.

UUID v8: Custom format (RFC 9562)

RFC 9562 custom-format UUID for implementation-specific use cases. Proper version and variant bits set, with 122 bits of cryptographically random data by default.

Nil UUID: All zeros

Complete support for all nine UUID versions (nil, v1–v8) with correct RFC 4122 variant bits (bits 64–65) and version bits (bits 48–51).

Markdown Live Preview

Paste Markdown and see a beautifully rendered preview side-by-side with the HTML output. Toggle between Preview and HTML with one click.

URL Decoding

Added URL decoding support alongside the existing encoder.

Smart Quote Auto-Conversion

Curly quotes and smart apostrophes are automatically converted to straight equivalents so pasted text works correctly in every tool.

Favorites & Recents sections no longer overlap each other or category items in the sidebar

Pasting Markdown no longer shows an "Invalid input" error; live preview renders immediately

Resolved text overlapping issues throughout the sidebar and output areas

Markdown images (![alt](url)) now render correctly instead of being parsed as links

Customizable Sidebar

Reorder tools, hide categories, and rearrange tools within categories to match exactly how you work.

Window Position Restore

Devly now remembers where you left the window and restores it on next launch.

Standalone Window Mode

Devly can now open as a full standalone window, giving you complete flexibility beyond the menu bar. Use it however fits your workflow.

General bug fixes and stability improvements

Base64 encode / decode

URL percent-encoding

HTML entity encode / decode

JWT decoder with header & payload inspection

Unicode escape / unescape

Binary ↔ Hex conversion

Morse code translator

ROT13 cipher

MD5, SHA-1, SHA-256, SHA-384, SHA-512 hash generator

HMAC generator with multiple algorithms

Password hashing (PBKDF2)

File checksum verification

UUID v4 generator (single or batch)

Cryptographic random string generator

Nano ID generator

JSON formatter & validator with syntax highlighting

JSONPath query engine

JSON ↔ YAML bidirectional converter

YAML formatter

XML formatter & validator

XML ↔ JSON converter

CSV ↔ JSON converter

SQL formatter

GraphQL query formatter

TOML parser

Color converter (HEX, RGB, HSL, HSB)

CSS minifier / beautifier

JavaScript minifier

HTML minifier

Markdown live preview

Lorem Ipsum generator

Data URI converter

SVG path visualizer

Placeholder image generator

String case converter (camelCase, snake_case, kebab-case, PascalCase…)

Regex tester with match highlighting

Regex pattern library, common patterns ready to use

String diff comparison

Line sorter & deduplicator

Text statistics (words, characters, lines, sentences)

String escape / unescape (JSON, XML, CSV…)

Whitespace visualizer & cleaner

Number base converter (binary, octal, decimal, hex)

Unix timestamp ↔ date converter

Epoch batch converter

URL slug generator

QR code generator

Cron expression parser with human-readable output

Git branch name generator

Semantic versioning (SemVer) comparator

ASCII art text generator

HTTP status code reference

MIME type lookup

Common port number reference

IP address information

SSL/TLS certificate decoder