34 tools in this category
Developer tools for everyday work.
Small browser-based utilities for common development tasks. Everything here works without an account.
JSON to CSV Converter
Turn an array of JSON objects into clean CSV without uploading your data.
CSV to JSON Converter
Convert CSV rows into JSON records locally in your browser without uploading your data.
HTML Entity Encoder
Escape text for safe use in HTML by converting reserved characters to entities.
CSS Clamp Calculator
Create a fluid CSS clamp() font-size expression from your size and viewport range locally.
CSS Box Shadow Generator
Create a ready-to-copy CSS box-shadow declaration locally in your browser.
Cron Expression Generator
Create a five-field cron schedule locally in your browser without uploading any settings.
Random String Generator
Generate configurable cryptographically random strings locally in your browser.
HMAC Generator
Generate HMAC signatures with SHA-1, SHA-256, SHA-384, or SHA-512 locally in your browser.
Base64 Encoder Decoder
Encode text to Base64 and decode Base64 back to text locally in your browser.
UUID v7 Generator
Generate time-ordered, monotonic UUID version 7 identifiers locally in your browser.
CSS Length Converter
Convert CSS absolute lengths between pixels, points, picas, inches, centimeters, millimeters, and Q locally in your browser.
GPU Memory Calculator
Estimate GPU memory for model weights, gradients, optimizer states, and activations locally in your browser.
Hash Generator
Generate SHA-256, SHA-1, SHA-384, or SHA-512 hashes from text locally in your browser.
Embedding Storage Calculator
Estimate vector embedding storage from vector count, dimensions, precision, metadata, and index overhead locally in your browser.
Regex Tester
Test JavaScript regular expressions with flags against sample text locally in your browser.
RAG Chunking Calculator
Estimate RAG chunk counts, token totals, and overlap overhead from document length, chunk size, and overlap locally in your browser.
Password Strength Calculator
Estimate password strength from length and character variety with entropy and crack-time estimates locally in your browser.
Storage Growth Calculator
Project future storage needs from current usage, monthly new data, and a monthly growth rate locally in your browser.
Concurrency Throughput Calculator
Estimate request throughput from concurrent workers and average task duration locally in your browser.
HTML Entity Escaper
Escape text for safe use in HTML by converting reserved characters to entities locally in your browser.
IP Converter
Convert an IPv4 address between dotted decimal, 32-bit integer, hexadecimal, and binary locally in your browser.
Download Time Calculator
Estimate how long a file download takes from file size and connection speed locally in your browser.