Toolstack
100% Client-Side • Zero Server Upload

PDF Merger & Splitter

Combine multiple PDFs into one document or extract specific page ranges instantly in your browser.

Drop PDF files here, or click to browse

Select 2 or more PDF documents to combine

Frequently Asked Questions

Clear, concise answers to common questions about Base64 decoding, encoding, and specifications.

Upload two or more PDF files, drag and drop them into your preferred reading order, and click "Merge PDFs". The tool compiles them into a single coherent PDF document instantly.

Explore More Free Tools on Toolstack

Client-side developer utilities, image converters, calculators, and educational engineering guides.

Word Counter

Count words, characters with/without spaces, sentences, and paragraphs in real time with reading speed metrics.

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PDF Compressor

Reduce PDF document file size directly in your browser with zero server uploads.

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Image Compressor & Resizer

Batch compress and scale JPG, PNG, and WebP images with custom quality settings.

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URL Encoder & Decoder

Encode and decode query strings, special characters, and parameters with RFC 3986 percent-encoding.

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JSON Validator & Formatter

Beautify, validate, minify, and auto-fix JSON syntax errors with real-time line/column diagnostics.

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HEIC to JPG Converter

Convert Apple iPhone HEIC and HEIF photos to high-quality JPG directly in your browser.

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