Developer Utilities Tools
curl ↔ fetch, git-log parser, regex visualiser, GraphQL builder.
17 tools · all run in your browser
Postman → cURL
Convert Postman collection requests to cURL commands
Git Diff → HTML
Convert unified git diff output to syntax-highlighted HTML
Regex Visualizer
Visualize regex patterns as a readable railroad diagram (text)
Makefile Explainer
Parse a Makefile and explain each target and its dependencies
Shell Script Linter
Check shell scripts for common issues and bad practices
GitHub Actions Visualizer
Parse a GitHub Actions workflow and show job/step dependencies
HAR File Viewer
Parse and summarize HTTP Archive (HAR) files
API Response Mocker
Generate mock API JSON responses from a URL + method description
GraphQL Query Builder
Generate GraphQL queries from a schema definition
OpenAPI → TypeScript
Generate TypeScript interfaces from an OpenAPI schema
Diff Patch Applier
Apply a unified diff patch to source text
GraphQL Introspection → SDL
Convert GraphQL introspection JSON to SDL schema
HTTP Request Replayer
Generate fetch/axios/curl code from raw HTTP request text
cURL → fetch()
Convert a curl command into a JS fetch() call
Git Log Parser
Parse git log output into structured JSON
HTTP → cURL Builder
Build a curl command from method, URL, headers & body fields
SemVer Bump
Compute next major / minor / patch / prerelease