Tools & guides for engineers, free & unlimited

SQL Query Generator

Describe what you need in plain English and get a ready-to-run SQL query.

Python Code Explainer

Paste any Python snippet and get a clear, plain-English explanation line by line.

MCP Server Generator

Describe the tools you want to expose and get a runnable MCP server.

AI Prompt Optimizer

Turn a rough prompt into a clearer, better-structured one that gets reliable results.

Docker Compose Generator

Describe your services and get a production-ready docker-compose.yml.

Kubernetes YAML Generator

Describe your workload and get valid Deployment, Service, Ingress and HPA manifests.

Terraform Generator

Describe the infrastructure you need and get clean Terraform HCL for AWS, GCP or Azure.

Spark Config Optimizer

Describe your cluster and job and get tuned executor, memory and shuffle settings.

Datadog Cost Estimator

Estimate your monthly Datadog bill across hosts, logs, APM and custom metrics.

Iceberg Catalog Generator

Pick a catalog, engine and storage backend and get a working Apache Iceberg config.

PySpark Memory Calculator

Size executor memory, cores and overhead to stop YARN container-killed errors.

Kafka Retention Calculator

Model ingest rate, retention and replication into a per-broker disk estimate.

GitHub README Generator

A few project details in, a polished README.md out — features, stack, setup.

Meeting Summarizer

Upload a recording and get a summary, decisions and action items.

Audio Transcribe

Transcribe audio and video to accurate text with timestamps.

Passport Photo

Turn any photo into a compliant passport or visa photo in seconds.

AI Audio Enhancer

Make a laptop-mic recording sound like a studio voice, with a live before/after switch.

Noise Reduction

Strip background hiss, hum and room noise from any recording.

Auto Caption

Burn styled, word-by-word captions into Shorts and Reels automatically.

YouTube Chapters

Generate timestamped YouTube chapters from any video.

Online Compiler

Run Python, JavaScript, TypeScript and SQL in your browser — query your own CSV.

SQL Formatter

Beautify and minify SQL queries with keyword highlighting and auto-indent.

JSON Formatter

Prettify, minify and validate JSON instantly in your browser.

JWT Decoder

Decode and inspect JWT header, payload and expiry claims instantly.

Cron Tester

Parse cron expressions, get next run times and plain-English descriptions.

Timestamp Converter

Convert Unix epoch to dates and back — auto-detects s/ms/µs/ns, with time zones.

cURL Generator

Build a curl command from a form, or paste one in and convert it to fetch, Python or Go.

Regex Tester

Live regex tester with match highlighting, group capture and replace mode.

SSL Checker

Check SSL certificate expiry, issuer, SANs and validity for any domain.

Markdown to Word & PDF

Turn a .md file into a Word document or a PDF — real heading styles, list numbering and tables.

Resume ATS Checker

Check keyword match between your resume and a job description instantly.

Readability Score

Flesch-Kincaid readability score, grade level, and tips to improve your writing.

Email Subject Tester

Score email subject lines for open rate, spam risk, and mobile preview.

Typing Speed Test

Measure your real WPM over 15 seconds to 10 minutes, download a certificate, and challenge friends with the same words.

SEO Audit

Audit the HTML your server actually serves, then get an ordered fix plan with effort estimates.

OG Image Generator

Generate Open Graph images for social sharing — download as PNG instantly.

Color Palette

Extract dominant colors from any image — get HEX, RGB and HSL codes.

Invoice PDF

Create professional invoices with line items, tax and discount. Download as PDF.

Freelance Rate

Work out the hourly rate you actually need — tax, expenses and non-billable hours included.

Project Pricing

Price a fixed-bid project with three-point estimates, revision buffers and platform fees.

Proposal Generator

Paste a job post and get a proposal that answers the brief instead of listing your CV.

Document Converter

Any document format to any other - Word, PDF, Markdown, HTML, EPUB, ODT, RTF, text and CSV, both directions.

Markdown to Word & PDF

Paste Markdown, watch it render, and download the .docx and the PDF from one parse.

Exam Photo Resizer

Photo, signature and thumb impression at the exact px and KB an exam portal wants.

Signature Resizer

Whiten the paper and land a signature in the 10-20 KB, 140x60 px window banks demand.

Compress Image to Size

Hit an exact file size - 20 KB, 50 KB or any number - without leaving your browser.