Development
AI, YOLO, GPU and CCTV tools
Gaming
PC and mobile game checks
Docs, Images & Video
PDF, image and video tools, right in your browser
Lotto
Korean, Japanese and US lottery numbers and statistics
Travel
Travel tools are in progress
Fitness
Fitness tools are in progress
Life
Everyday tools are in progress
Work & Pay
Work and pay calculators
Finance & Assets
Tools for investing, saving, borrowing and managing money
AI Costs
AI model usage and API cost tools
Find tools for development and engineering in one place.
Search by name, description or keyword.
Calculate required video storage from camera count, bitrate and recording duration.
Calculate required network bandwidth from camera count and bitrate.
Check YOLO training feasibility and recommended settings from GPU and VRAM.
Test GPU compute, memory and AI matrix performance directly in the browser.
Format JSON and validate its syntax instantly.
Compare two text or code blocks line by line.
Format HTML with consistent indentation for easier reading.
Format CSS selectors and declarations with readable indentation.
Format JavaScript braces and indentation for easier review.
Format SQL and catch basic syntax issues.
Convert tabular data safely between CSV and JSON.
Compare two JSON documents and find added, removed and changed values.
Query nested JSON with dot and bracket paths.
Convert simple configuration data between YAML and JSON.
Convert images and YOLO labels into a COCO JSON dataset.
Write Markdown and preview the rendered result.
Convert HEX colors to RGB and HSL values.
Inspect a DAT file as text, JSON, or binary data in your browser.
Encode and decode text with Base64 or URL encoding.
Inspect a JWT header and payload in your browser.
Test a regular expression against sample text.
Generate unique UUIDs locally in your browser.
Create a SHA-256 hash from text.
Convert Unix timestamps and readable dates.
Generate a hard-to-guess password in your browser.
Look up HTTP status codes and file MIME types quickly.
Explain the schedule represented by a five-field Cron expression.
