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Developer tools
68 professional utilities for encoding, code, JSON/XML, security and more.
DevsWallet is a curated library of 68 live developer utilities spanning 15 categories, from JSON formatters and JWT decoders to AI writing aids, PDF processors, and temporary email testers. Each tool page includes an interactive utility plus an original guide with step-by-step instructions, use cases, and FAQs.
Use the search bar to find a tool by name or keyword. Category filters group related utilities so you can compare options quickly. For deeper tutorials, visit our blog or open any tool and scroll to the guide section below the workspace.
18 tools for formatting workflows: formatting, validation, conversion, and everyday developer tasks.
Browse Formatting tools5 tools for encoding workflows: formatting, validation, conversion, and everyday developer tasks.
Browse Encoding tools2 tools for generators workflows: formatting, validation, conversion, and everyday developer tasks.
Browse Generators tools7 tools for ai workflows: formatting, validation, conversion, and everyday developer tasks.
Browse AI tools4 tools for pdf workflows: formatting, validation, conversion, and everyday developer tasks.
Browse PDF tools1 tools for email workflows: formatting, validation, conversion, and everyday developer tasks.
Browse Email toolsNetwork
Postman-style REST client
AI
Video URL to transcript
AI
AI CV generator
AI
Audio transcription
Web
Core Web Vitals audit
Temporary email & fake inbox
Generators
Custom colors, logo & analytics
AI
OCR online: image to text
AI
Humanize AI text
AI
Rewrite text with AI
Text
Detect & fix plagiarism in real time
Media
Reduce image size instantly
Convert PDF to editable DOCX
Combine multiple PDFs
Extract pages from PDF
Shrink PDF file size
AI
Generate code with AI
Formatting
Beautify & build queries
Security
Strong passwords + breach check
Color
Palettes & gradient builder
Text
Write & preview live
Media
HD thumbnails in one click
Network
Registrar & expiry info
Network
Geo & ISP details
SEO
OG & Twitter cards
SEO
Crawler rules builder
SEO
XML sitemap from URLs
Formatting
Validate & pretty-print
Formatting
Pretty-print & minify JSON
Formatting
Shrink stylesheets
Formatting
Format & prettify JS
Text
Convert HTML to MD
Formatting
Test patterns in real time
Formatting
Convert between formats
Encoding
Encode & decode Base64
Encoding
Inspect JSON Web Tokens
Encoding
Encode/decode URL strings
Generators
Generate v1, v4, v7 UUIDs
Identity
Auto-extract verification codes
Identity
Live OTP listener
Color
HEX, RGB, HSL, OKLCH
Color
WCAG accessibility ratios
Text
Placeholder text generator
Text
camel, snake, kebab, title
Text
Compare two text blocks
Text
Words, chars & reading time
Text
Remove HTML tags
Time
Unix ⇄ ISO ⇄ Human
Time
Explain cron expressions
Security
MD5, SHA-1, SHA-256, SHA-512
Media
PNG, JPG, WebP, AVIF
Web
px, rem, em, %, vh, vw
Web
Decode UA strings
Encoding
Encode & decode entities
Encoding
Base64 files in the browser
Text
Trim, reverse, sort & more
Formatting
Beautify HTML markup
Formatting
Convert JSON to XML
Formatting
Compare two JSON documents
Formatting
Schema from sample JSON
Formatting
Types from JSON
Formatting
Pretty-print XML
Formatting
Convert XML to JSON
Formatting
XML rows to CSV
Formatting
CSV rows to XML
Formatting
Check XML syntax
Formatting
Types from XML
Security
AES-GCM with password