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Develop Tools

Browser-based developer utilities

Make everyday development easier in your browser.

A growing collection of utilities for masking code and data, testing devices, converting files, viewing data, generating values, and comparing changes.

  • Local browser processing first
  • No input data sent to our servers
  • No installation required

Code & Data Masking Tools

Mask or anonymize sensitive information while preserving the original structure.

Java

Java Code Masking Tool

Mask sensitive information while preserving Java and Spring Boot code structure.

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SQL

SQL Masking Tool

Mask table names, column names, values, and comments with database-specific syntax support.

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JSON

JSON Masking Tool

Mask keys, strings, and numbers while preserving nested JSON structures.

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Log

Log Masking Tool

Mask sensitive information in Log4j, Syslog, JSON Lines, and access logs.

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Vue

Vue Code Masking Tool

Mask Vue Single File Components while preserving their template, script, and style structure.

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React

React Code Masking Tool

Mask React JSX and TSX code while preserving component structure.

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jQuery

jQuery Code Masking Tool

Mask jQuery code while preserving selectors and code structure.

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Python

Python Code Masking Tool

Mask Python classes, functions, variables, strings, numbers, and comments.

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C#

C# Code Masking Tool

Mask C# classes, methods, variables, strings, numbers, and comments.

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PHP

PHP Code Masking Tool

Mask PHP classes, functions, variables, strings, numbers, and comments.

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VB.NET

VB.NET Code Masking Tool

Mask VB.NET classes, methods, variables, strings, numbers, and comments.

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VBA

VBA Code Masking Tool

Mask VBA procedures, variables, values, and comments used in Excel and Access.

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Rust

Rust Code Masking Tool

Mask Rust types, functions, variables, strings, numbers, and comments.

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COBOL

COBOL Code Masking Tool

Mask program names, sections, paragraphs, data items, values, and comments in fixed or free format.

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Bash

Bash Script Masking Tool

Mask functions, variables, strings, numbers, and comments while preserving the shebang.

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Ruby

Ruby Code Masking Tool

Mask Ruby classes, methods, variables, strings, numbers, and comments.

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Swift

Swift Code Masking Tool

Mask Swift types, functions, variables, strings, numbers, and comments.

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Objective-C

Objective-C Code Masking Tool

Mask Objective-C classes, methods, variables, strings, numbers, and comments.

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Testing Tools

Check connected devices and your browser environment.

Keyboard

Keyboard Tester

Test key input, chatter, simultaneous key presses, and Caps Lock.

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Webcam

Webcam Tester

Check webcam video, resolution, recording, mirroring, and snapshots.

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Microphone

Microphone Tester

Check microphone input level, frequency spectrum, and local recording.

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Clock

Clock Drift Checker

Compare the device clock and time zone with the site's UTC time.

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IP

IP Address & Connection Checker

View your public IP, approximate region, ASN, connection, and browser information.

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Conversion Tools

Convert files locally in your browser without uploading them.

Audio

Audio File Converter

Convert between WAV, MP3, and OGG Vorbis directly in your browser.

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Video Audio

Extract Audio from Video

Extract audio from MP4, WebM, MOV, and other videos, then save it as MP3, WAV, or OGG.

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Audio + Image

Create Video from Audio & Image

Combine one background image and an audio file into an MP4 or WebM video.

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Image

Image File Converter

Convert between PNG, JPEG, WebP, and BMP directly in your browser.

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Video Frames

Video & GIF Frame Extractor

Save every frame or frames at a selected interval from MP4, WebM, MOV, and GIF files.

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Video GIF

Video to GIF Converter

Create an animated GIF with a selected range, frame rate, size, and color count.

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Generator Tools

Generate QR codes, hashes, color palettes, and other useful values.

QR

QR Code Generator & Reader

Create QR codes and read them from image files locally in your browser.

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Password

Secure Password Generator

Generate passwords with cryptographically secure randomness and configurable character sets.

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Hash

Hash Generator & Checker

Generate hashes for text or files and compare them with an existing value.

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Color

Color Picker & Code Converter

Pick colors, convert formats, generate palettes, and check contrast ratios.

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Viewer Tools

Inspect file contents locally in your browser without uploading them.

CSV

CSV & TSV File Viewer

Open CSV and TSV files as tables with search, sorting, resizing, and pagination.

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SQL

SQL Database File Viewer

Inspect database tables, schemas, and data in read-only mode.

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Comparison Tools

Visualize differences between text, files, and images.

Diff

Text Diff Checker

Compare two texts or files and display differences by line and character.

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Image Diff

Image Difference Checker

Overlay two images and calculate pixel-level differences and the difference ratio.

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