DevToolkit

43 zero-dependency Python CLI tools for developers. Copy any file and run it -- no pip install, no setup, no configuration. Works on Windows, macOS, and Linux.

Quick Start

# Browse all tools
py toolkit.py

# Search by keyword
py toolkit.py search "api"
py toolkit.py search "json"

# Run any tool
py serve.py -p 3000
py fakegen.py user 10 --format json
py secretscan.py .

Tools by Category

Web/API (5 tools)

Tool	Description	Example
serve.py	Local dev server with CORS, file upload, SPA mode	py serve.py -p 3000 --cors
mockapi.py	Mock API server from JSON config	py mockapi.py routes.json
httpprobe.py	Batch URL health checker with SSL info	py httpprobe.py url1 url2 --ssl
catchhook.py	Webhook receiver & request inspector	py catchhook.py -p 9000
httpfile.py	Run .http files (VS Code REST Client format)	py httpfile.py requests.http

Data (6 tools)

Tool	Description	Example
dataconv.py	Convert between JSON, YAML, TOML, CSV, XML	py dataconv.py data.json -o data.yaml
csvtool.py	Query & transform CSV (filter, sort, groupby)	py csvtool.py data.csv filter "age > 30" sort name
textpipe.py	Chain text ops (grep+awk+sort+uniq)	py textpipe.py log.txt grep ERROR freq
smartdiff.py	Structure-aware diff (JSON keys, directories)	py smartdiff.py a.json b.json
sqlq.py	Query SQLite databases with formatted output	py sqlq.py mydb.sqlite "SELECT * FROM users"
fakegen.py	Generate fake data (names, emails, users)	py fakegen.py user 100 --format csv

Process (5 tools)

Tool	Description	Example
multirun.py	Run multiple commands simultaneously	py multirun.py "npm start" "python api.py"
watchrun.py	Run command on file changes	py watchrun.py "pytest" -p "*.py"
taskrun.py	Task runner with dependencies (like Make)	py taskrun.py build
todo.py	CLI task manager with priorities & tags	py todo.py add "Fix bug" -p high
quickbench.py	Benchmark commands (like hyperfine)	py quickbench.py "cmd1" "cmd2" -n 20

Code & Project (6 tools)

Tool	Description	Example
codebase_analyzer.py	Project health: languages, TODOs, deps	py codebase_analyzer.py .
readmegen.py	Auto-generate README from project files	py readmegen.py .
mdtool.py	Markdown TOC, table format, link checker	py mdtool.py toc README.md --insert
diskuse.py	Disk usage analyzer (like ncdu)	py diskuse.py . --top 20 --ext
scaffold.py	Project scaffolder (Python/Node/Flask/etc)	py scaffold.py flask myapi
changelog.py	Keep a Changelog manager	py changelog.py add "New feature" -t feature

Security (2 tools)

Tool	Description	Example
secretscan.py	Find leaked API keys & secrets in code	py secretscan.py . --no-entropy
envtool.py	.env validator & secret detector	py envtool.py validate .env

Logging (1 tool)

Tool	Description	Example
logtail.py	Tail & filter logs (multi-file, JSON-aware)	py logtail.py app.log -f -l error

Files (3 tools)

Tool	Description	Example
renamer.py	Batch rename with regex, preview, undo	py renamer.py "(.+)\\.txt" "{1}.md"
snap.py	Simple file versioning (mini-git)	py snap.py save "Before refactor"
tmpl.py	Template processor (envsubst alternative)	py tmpl.py render config.tmpl --env prod.env

Utilities (8 tools)

Tool	Description	Example
devutils.py	18 commands: base64, uuid, hash, jwt, etc	py devutils.py uuid
portman.py	Find & kill processes by port	py portman.py check 8080
crontool.py	Cron expression explainer & scheduler	py crontool.py explain "0 9 * * 1-5"
colortool.py	Color converter, palette, WCAG contrast	py colortool.py palette "#3b82f6"
cheat.py	Personal command snippet manager	py cheat.py add "desc" "command" -t tag
retest.py	Regex tester (like regex101 for terminal)	py retest.py "\d+" "abc 123"
timer.py	Time tracker with reports	py timer.py start "Coding" -t dev
toolkit.py	Browse & search all tools	py toolkit.py search json

MCP/AI (6 tools)

Tool	Description	Example
mcp_schema_auditor.py	Optimize MCP tool schemas (33.5% reduction)	py mcp_schema_auditor.py tools.json
mcp_tool_selector.py	BM25-based tool selection (84-94% savings)	py mcp_tool_selector.py -q "search files"
claude_config_linter.py	Lint CLAUDE.md & AI config files	py claude_config_linter.py CLAUDE.md
ai_devtool.py	Unified MCP workspace health check	py ai_devtool.py check .
mcp_security_scanner.py	Scan MCP servers for vulnerabilities	py mcp_security_scanner.py server/
mcp_health_check.py	Full MCP setup health report	py mcp_health_check.py tools.json

Testing

py test_toolkit.py          # Full suite (99 tests)
py test_toolkit.py --quick  # Syntax + help only
py test_toolkit.py --tool serve  # Test specific tool

Design Principles

• Zero dependencies -- Every tool uses only Python's standard library
• Single file -- Each tool is one .py file. Copy it anywhere and run it
• Cross-platform -- Works on Windows, macOS, and Linux
• CLI-first -- Designed for terminal workflows, not imported as libraries
• Colored output -- ANSI colors where supported, graceful fallback
• JSON output -- Most tools support --json or --format json for scripting
• CI/CD friendly -- Proper exit codes (0 = success, 1 = failure)

Requirements

• Python 3.9+
• No pip installs needed

License

MIT