59 free command-line tools for developers. Zero dependencies. Just Python.
Use these tools directly in your browser. Instant. Private. Free.
Zero dependencies. Single-file Python scripts. Copy, paste, run.
Convert messy web articles to clean Markdown. Removes ads, scripts, and tracking.
Summarize long articles and documents using extractive summarization.
Check if websites are live. Get status codes, response times, redirects.
Format and validate JSON files. Pretty print with stats and error detection.
Encode/decode Base64 strings and files. Works with text and binary data.
Generate secure passwords with entropy analysis. Check strength, estimate crack time.
Convert between Unix timestamps and human-readable dates. Multiple formats.
Generate cryptographically strong random UUIDs (v4) in batches.
Process CSV files: preview, filter, convert to JSON. No spreadsheet needed.
Generate MD5, SHA1, SHA256 hashes for files and strings. Verify integrity.
Check for open ports on any host. Scans common ports with banner grabbing.
Find duplicate files by hash. Calculate wasted disk space.
Advanced duplicate file manager with delete script generation.
Calculate directory sizes and find what's taking up disk space.
Get IP address information. Public IP, local IP, geolocation.
Monitor system memory usage. Visual bar and usage warnings.
List running processes with memory usage. Filter by name.
Analyze log files. Count errors, extract IPs, status codes.
Make HTTP requests from CLI. GET, POST with headers.
Developer-friendly HTTP client with saved requests, history.
Local webhook receiver. Stripe, GitHub, Zapier compatible.
Convert between HEX, RGB, HSL. Terminal color preview.
Convert length, weight, temperature, data, time.
Check Solana wallet balances. Track crypto payments.
Compare two files and show line-by-line differences.
Test regular expressions with match highlighting.
Parse cron expressions and explain in plain English.
Generate passwords, strings, numbers, UUIDs, hex.
Count lines, words, characters in files or projects.
Monitor website uptime and response times. CSV logs.
Shorten long URLs using is.gd API. No signup.
Convert Markdown to styled HTML. Headers, lists, code.
Convert CSV to styled HTML tables. Responsive.
Display system info: OS, CPU, memory, disk.
Parse, analyze, encode URLs. Query string manipulation.
Decode and validate JWT tokens. Inspect claims.
Convert CSV ↔ JSON. Auto-detect delimiters.
GitHub repo health analyzer. 0-100 score.
Test SMTP servers. Check TLS, capabilities.
SSL certificate inspector. Expiry, issuer, SANs.
Plus 50+ more single-purpose utilities
Built for speed, privacy, and zero-dependency environments.
Replace SaaS subscriptions for uptime checks, port scans, and log triage.
Local-first workflows keep secrets off third-party websites.
Bundle the tools into client onboarding kits or paid audits.
Simple, dependency-free installation.
curl -O https://workspace-ivory-one.vercel.app/pd-researcher.zip (or download ZIP above).tools/ for the helper you need. Every file is ~50-150 lines.python3 tool_name.py --help prints arguments with sane defaults—no dependencies.We focused on the most common developer tasks—data formatting, security checks, and network diagnostics—building them as single-file scripts with zero dependencies.
The full toolkit is open source. While the GitHub repo is the primary home, this site mirrors every tool for permanent access.
Yes. Everything is MIT licensed, single-file, and dependency-free. Drop the scripts into internal repos, security reviews, or onboarding kits.
Yes, the core CLI pack is free forever. We offer a Pro tier for teams needing advanced automation pipelines, but the 59 tools are yours to keep.
Upgrade to PD_Researcher Pro for professional features:
One-time payment. Yours forever.
Pay with Crypto:
Send $29 worth of SOL or USDC
Email screenshot to support@sandstreet.holdings
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