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Developer toolbox
Every development and productivity tool in one place
Use essential tools for documents, images, video, data, security, and everyday development quickly and safely.
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16Shared rendering
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1Markdown -> MindMap
Deployment
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Popular tools
Launch frequently used tools quickly.
PDF Merge
Merge multiple PDF files in order.
JPG to PNG
Convert JPG images to PNG.
PNG to JPG
Convert PNG images to JPG with background color and quality options.
WEBP Converter
Export JPG, PNG, or WEBP images as quality-controlled WEBP files.
Image Resize
Resize an image to a chosen width and height in the browser.
Image Compress
Reduce image file size by changing dimensions and JPG quality.
EXIF Viewer
Read JPEG EXIF metadata in the browser and display it as a table.
EXIF Remover
Re-export images through browser canvas to remove file metadata such as EXIF.
Image Crop
Crop an image to a selected area and export it as PNG.
Sprite Sheet Generator
Combine multiple images into one downloadable sprite sheet PNG.
Color Palette Extractor
Sample frequent colors from an image and build a palette.
Image Rotate
Rotate an image in 90-degree steps and export it as PNG.
Image Flip
Flip an image horizontally or vertically.
Background Removal Mockup
A color-key mockup that makes pixels similar to the selected color transparent.
Image Filter
Apply browser canvas filters to an image.
Image Border
Add a custom color and width border around an image.
Canvas Extend
Extend the canvas around an image with a colored margin.
Image Format Info
Inspect the actual image format, dimensions, signature, alpha, and animation flags.
Image Compare
Compare two images over the same area and visualize pixel differences.
Placeholder Image Generator
Generate a placeholder PNG with chosen dimensions and colors.
JSON Formatter
Validate JSON and format it for reading or minify it into one line.
CSV Viewer
Preview CSV files as a table and inspect row and column counts.
CSV → JSON
Validate CSV data and convert it into a JSON array.
JSON → CSV
Convert JSON arrays or objects into escaped CSV.
Text Diff
Compare two text blocks and highlight added, removed, and changed lines.
Code Diff
Compare two code snippets with a whitespace-normalization option.
Document Summary Viewer
Extract headings, key sentences, keywords, and document stats in the browser.
HTML Preview
Render HTML in a sandboxed preview and inspect the document structure.
Paragraph Formatter
Normalize loose lines and spacing into readable paragraphs.
Case Converter
Convert text to upper, lower, title, or sentence case.
Character Counter
Count characters, words, lines, sentences, and length without spaces.
Text Sorter
Sort line-based text ascending, descending, or with duplicates removed.
Line Break Cleaner
Clean unnecessary line breaks and blank lines around sentences.
Password Generator
Generate random passwords with the browser crypto API.
Timestamp Converter
Convert Unix timestamps, milliseconds, and ISO dates to local time and UTC.
ZIP Creator
Bundle selected local files into a browser-generated ZIP download.
MP4 to GIF
Export a local browser-playable video segment as a real GIF file.