JSON formatters, encoders, hashes, regex testers and every daily coding utility developers need.
30 free tools · 30 live now · No signup required
Format, validate and beautify JSON with syntax highlighting.
Open tool →Validate JSON syntax and get precise error locations.
Open tool →Pretty-print minified JSON into readable indented code.
Open tool →Minify JSON to save bandwidth and storage space.
Open tool →Convert CSV data into clean, structured JSON arrays.
Open tool →Flatten JSON arrays into spreadsheet-ready CSV files.
Open tool →Format and validate XML documents with clean indentation.
Open tool →Beautify messy HTML with perfect indentation and structure.
Open tool →Minify HTML to speed up page load times dramatically.
Open tool →Format compressed CSS into readable, maintainable code.
Open tool →Strip CSS whitespace and comments for faster pages.
Open tool →Pretty-print minified JavaScript for easy reading.
Open tool →Minify JavaScript bundles to reduce load times.
Open tool →Encode any text or file into base64 instantly.
Open tool →Decode base64 strings back into readable text or files.
Open tool →Encode special characters for safe use in URLs.
Open tool →Decode percent-encoded URLs back to readable text.
Open tool →Encode HTML entities to prevent code injection.
Open tool →Decode HTML entities back into plain text.
Open tool →Decode and inspect JWT tokens payloads instantly.
Open tool →Test regular expressions live with highlighting and flags.
Open tool →Generate MD5, SHA-1, SHA-256 and SHA-512 hashes.
Open tool →Generate MD5 hashes of any text in one click.
Open tool →Generate SHA-1 checksums of any string instantly.
Open tool →Generate secure SHA-256 hashes for integrity checks.
Open tool →Generate v4 and v7 UUIDs in bulk, with or without hyphens.
Open tool →Convert between Unix timestamps and human-readable dates.
Open tool →Convert YAML configuration into JSON and back.
Open tool →Format messy SQL queries into clean readable statements.
Open tool →Build and explain cron expressions in plain English.
Open tool →Automate every tool programmatically — npm packages, REST endpoints and a terminal CLI.
CLI — process files from the terminal
# Install the UtilityHub CLI
npm i -g @utilityhub/cli
# Compress an image
utilityhub compress photo.jpg --quality 80
# Merge PDFs
utilityhub pdf-merge a.pdf b.pdf -o merged.pdf
# Generate a QR code
utilityhub qr "https://utilityhub.netbus.online" -o qr.pngREST API — automate your workflows
curl -X POST https://api.utilityhub.netbus.online/v1/compress \
-H "Authorization: Bearer $UTILITYHUB_KEY" \
-F "file=@photo.jpg" \
-F "quality=80" \
-o compressed.jpgNode.js — use the SDK in your app
import { UtilityHub } from "@utilityhub/sdk";
const uh = new UtilityHub({ apiKey: process.env.UTILITYHUB_KEY });
const { url } = await uh.compress("photo.jpg", { quality: 80 });
const pdf = await uh.pdf.merge(["a.pdf", "b.pdf"]);
console.log(pdf.url); // https://files.utilityhub.netbus.online/...Full API docs at docs.utilityhub.netbus.online — free tier: 1,000 requests/month, no credit card required.
Every developer processes your files locally in the browser. Nothing is uploaded, stored or tracked.
Unlimited usage with no watermarks, no premium paywalls and no account required. Free means free, forever.
Zero server round-trips means most tools finish in under 40 milliseconds — faster than loading the page itself.