16 tools · browser-only · no sign-in

Small tools,
kept sharp.

Formatters, encoders, generators and calculators for the small jobs between the work — each one running entirely in your browser. No uploads, no accounts, no waiting on a server.

press Ctrl K anywhere to search

// Converters & Encoders

3
open ❯

Base64 Encoder

Encode and decode Base64 strings with a developer-friendly interface.

open ❯

JSON Beautifier

Format, validate and beautify your JSON data instantly.

open ❯

Table Converter

Convert seamlessly between HTML tables, CSV (comma-separated), and TSV (tab-separated) data with live preview and editing.

// Generators

3
open ❯

Password Gen

Generate secure, random passwords with custom requirements.

open ❯

QR Code Gen

Generate and customize QR codes with solid/gradient fills, unique eyeball shapes, and custom logo inserts.

open ❯

Nginx Config Generator

Generate production-ready nginx server blocks for static sites or reverse proxies, with SSL, gzip, security headers, and SPA support.

// Text & RegEx

2
open ❯

String Length

Real-time string character counting utility.

open ❯

RegEx Tester

Validate and test regular expressions in real-time with visual match highlighting and capture group details.

// Finance & Time

4
open ❯

EMI Calculator

Calculate Equated Monthly Installments for various loans.

open ❯

Salary Tax Calc

Reverse calculate gross salary from expected net income in Cambodia.

open ❯

Gold Price Tracker

Track real-time gold spot prices, convert across international & Cambodian units (Damleung, Chi), and view historical trends.

open ❯

Day Count

Calculate days between dates, adjust dates, and track custom countdowns/milestones with local storage.

// Randomizers

2
open ❯

Random & Grouping

Split lists into random groups or pick winners easily.

open ❯

Lucky Draw

Spin wheels, shake mystery boxes, or scratch cards to pick winners dynamically with elegant synthesized sound and confetti.

// Hardware Testers

2
open ❯

Keyboard Tester

Test keyboard keys, multi-key rollover (NKRO), and synthesized mechanical switches.

open ❯

Display Tester

Calibrate screens, detect dead pixels, test contrast limits, and check screen backlight bleeding.

local-first — your data never leaves the tab

instant — no network roundtrips, no spinners

honest — open source on next.js + tailwind