Tool index
All practical tools
Every listed tool is functional. Research-selected tools appear only after implementation and verification.
Image Resizer
Resize JPG, PNG and WebP images to exact dimensions without uploading them.
Image Compressor
Reduce image file size locally with visible quality controls.
Image Converter
Convert between JPG, PNG and WebP in your browser.
Image Cropper
Crop an image to exact dimensions or useful social presets.
Image Metadata Remover
Create a clean image copy without retained metadata.
Favicon Generator
Create practical favicon sizes from one source image.
Merge PDF
Combine PDF files locally and choose their order.
Split PDF
Split a PDF into page ranges without uploading the document.
Rotate PDF Pages
Rotate all or selected PDF pages locally.
Reorder PDF Pages
Rearrange PDF pages before downloading a new copy.
Extract PDF Pages
Save selected pages from a PDF as a new document.
Images to PDF
Combine JPG and PNG images into one PDF locally.
Word and Character Counter
Count words, characters, lines and reading time without sending your text anywhere.
Case Converter
Convert text between upper, lower, title, sentence and alternating case.
Remove Duplicate Lines
Deduplicate lines while preserving the order you choose.
Text Difference Checker
Compare two text blocks and highlight meaningful changes locally.
JSON Formatter and Validator
Validate, format and minify JSON in your browser.
CSV to JSON Converter
Convert CSV rows to JSON with a preview before download.
URL Encoder and Decoder
Encode or decode URL components without logging the input.
UTM Builder
Build a campaign URL from clearly labelled UTM parameters.
QR Code Generator
Generate a downloadable QR code locally from text or a URL.
ROAS Calculator
Calculate return on ad spend from editable revenue and spend.
Break-even CPA Calculator
Estimate the maximum acquisition cost from margin and conversion assumptions.
Percentage Change Calculator
Calculate percentage increase or decrease with the formula shown.