AdminSo DevToolbox

Data Format

JSON Formatter
YAML ⇄ JSON

Encoding / Decoding

Base64 Encode/Decode
URL Encoder/Decoder
JWT Decode
Hash Generator
ASCII Converter
Base64 Image Encoder
Markdown Editor
QRCode Generator
Favicon Generator
Image Compressor
WiFi QR Code
HTML Entities Encode/Decode
JS/CSS/HTML Minify/Beautify

Code Runner

Python Compiler
SQL Editor
HTML/CSS Playground
Tailwind Playground

Regex & Testing

Regex Tester
Regex Visualizer
Webhook Tester
PowerPoint Search

AI Assistant

AI Code Generator
AI Code Commenter

PDF Tools

PDF Merge & Split
PDF Compressor
PDF ↔ Image Converter
PDF Watermark & Page Number
PDF Encrypt / Decrypt
Add Image to PDF
PDF to Word
PDF to HTML
PDF Page Manager
PDF to Excel
PDF Metadata Editor
PDF Reader
PDF Signature
PDF Annotation

Network & Misc

IP/DNS Lookup
Diff Checker
CSS Gradient
Color Converter
SVG Placeholder
Image Converter
GIF Maker
Photo Copy Effect
SVG to Image
Online Whiteboard
Cron Expression Generator
HTTP Client
Image Annotator
Image Beautifier

Advertisement

250x250

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Image Annotator

Click to upload or drag & drop an image

Supports JPG, PNG, GIF, WebP, BMP, SVG. Max 20MB.

Color: Width: Font:

100%

Annotations

Upload an image and annotate it — add circles, rectangles, arrows, and text labels. Undo/redo supported. Export as PNG.

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