AI Developer Library
Collect skills, agents, prompts and project rules in a searchable local library.
Read guideEverything in CodeSwissKnife, grouped by workflow
Use this page as the product map. The demo page shows full screenshots; this page explains what each feature is for and where it fits.
AI workflow
Reusable development knowledge and local inspection tools for AI-assisted coding.
MCP Inspector
Inspect MCP transcripts, capabilities, tools, resources and protocol errors locally.
Read guideJSONPath Playground
Run RFC 9535 JSONPath queries with live matches and structured previews.
Read guideStructured Data Diff
Compare JSON, YAML and property lists by meaning, with patch-ready output.
Read guideFormatters and validators
Clean, validate and inspect structured files without pasting sensitive content into web tools.
JSON Format/Validate
Format, validate, minify and inspect JSON locally.
View screenshotXML Format/Validate
Format and validate XML while preserving structure and entities.
View screenshotHTML/CSS/JS/TS Formatter
Beautify and minify frontend code in a native macOS app.
View screenshotSQL Formatter
Format SQL while keeping comments and strings readable.
View screenshotConverters
Move data between developer formats and generate code-ready representations.
cURL to Code
Convert cURL commands into reusable requests and code snippets.
View screenshotJSON to Code
Generate typed models and data structures from sample JSON.
View screenshotSVG to Code and Data URI
Turn SVG assets into embeddable code and compact data URIs.
View screenshotJSON to TOON
Convert JSON into TOON for token-efficient AI workflows.
View screenshotYAML to JSON
Convert YAML and JSON back and forth with readable formatting.
View screenshotJSON to CSV
Flatten structured JSON into CSV and convert tabular data back again.
View screenshotPlist to JSON
Inspect and convert macOS property lists without leaving the app.
View screenshotUnix Time Converter
Convert timestamps, local time, UTC and common date formats.
View screenshotNumber Base Converter
Convert numbers across decimal, binary, octal and hexadecimal.
View screenshotColor Converter
Translate colors between HEX, RGB, HSL and developer formats.
View screenshotImage Converter and Metadata
Convert image formats and inspect metadata locally.
View screenshotText Case Converter
Convert strings between common code and writing cases.
View screenshotLine Sort and Dedupe
Sort, clean, deduplicate and normalize lists of lines.
View screenshotEncoders and decoders
Decode, encode and inspect common payloads without handing them to a third-party website.
Base64 String Encode/Decode
Encode and decode Base64 text with local validation.
View screenshotBase64 Image Encode/Decode
Convert images to Base64 strings and decode them back.
View screenshotURL Encode/Decode
Encode, decode and inspect URL-safe strings.
View screenshotHTML Entity Encode/Decode
Convert reserved characters to HTML entities and back.
View screenshotString Literal Escape/Unescape
Escape and unescape strings for common programming languages.
View screenshotHex to Text Converter
Convert hexadecimal data to readable text and back again.
View screenshotCertificate Decoder
Inspect X.509 certificate details without uploading private material.
View screenshotQR Code Generator and Reader
Create QR codes and read QR content locally from images.
View screenshotGenerators
Create identifiers, secrets, hashes and sample content for everyday development tasks.
UUID/ULID Generator
Generate and inspect UUIDs and ULIDs for identifiers and test data.
View screenshotPassword Generator
Create strong passwords with adjustable length and character rules.
View screenshotHash and Checksum Generator
Calculate common hashes and checksums from text or files.
View screenshotMock Data Generator
Generate realistic names, addresses, values and test records.
View screenshotLorem Ipsum Generator
Create placeholder copy in the length and structure you need.
View screenshotNetwork
Work with addresses and request files locally. Requests are sent only when you explicitly run them.
HTTP Client
Run .http request files with variables, headers and response tabs.
IPv4/IPv6 Subnet Calculator
Calculate network ranges, masks, prefixes and address counts.
View screenshotIP Address Converter
Convert IP addresses between decimal, hex, binary and standard notation.
View screenshotIP Range Expander and Summarizer
Expand, summarize and clean up IP ranges for network work.
View screenshotMAC Address Generator
Generate and format MAC addresses for tests and examples.
View screenshotIPv6 ULA Generator
Generate IPv6 unique local addresses with readable output.
View screenshotInspectors and debuggers
Understand tokens, URLs, strings, schedules and previews without leaving the local app.
JWT Debugger
Decode, inspect, verify and sign JSON Web Tokens without uploading them.
View screenshotRegex Tester
Test regular expressions against sample text with live matches.
View screenshotCron Expression Parser
Read cron schedules and preview upcoming run times.
View screenshotText Diff Checker
Compare text side by side and spot line-level changes.
View screenshotString and Unicode Inspector
Inspect Unicode code points, invisible characters and encoding details.
View screenshotURL Parser
Break URLs into scheme, host, path, query parameters and fragments.
View screenshotHTML Preview
Preview HTML locally while editing markup.
View screenshotMarkdown Preview
Render Markdown locally with a clean writing and preview workflow.
View screenshotSystem Info
View useful macOS and device details in one local utility.
View screenshotSee the full app before installing
The demo page keeps the large screenshots. The feature map keeps the product easy to scan.