Why ToolHub?
Frequently asked questions
Are my files uploaded to a server?
No. Every tool runs entirely inside your browser using JavaScript. Your files are read locally and never uploaded, so your documents never leave your device.
Is ToolHub free to use?
Yes — every tool is completely free with no sign-up, no watermarks and no upload limits. There are no paywalls or hidden charges.
Do I need to install any software?
No installation is required. ToolHub works in any modern browser. You can optionally install it as a Progressive Web App (PWA) for quick access and offline use.
Which file formats are supported?
ToolHub supports PDF, JPG, PNG, WebP and other common image formats, plus Word, Excel and PowerPoint conversions, QR codes, ZIP archives and more — over 30 tools in total.
Is there a file size limit?
There is no fixed limit imposed by ToolHub. Because processing happens on your own device, the practical limit depends on your device's memory and the browser rather than any server quota.
How do I compress a PDF without uploading it?
Open the Compress PDF tool, drag in your file and click compress. The PDF is optimised locally in your browser and downloaded straight back to you — it is never uploaded to a server, so your document stays completely private.
How do I merge PDF files for free?
Use the free Merge PDF tool, add two or more PDFs, drag them into the order you want and click merge. There is no sign-up, no watermark and no upload — the combined PDF is created on your device and ready to download instantly.
Does ToolHub work offline?
Once loaded, the app shell is cached so the site itself works offline. Tools that rely on external libraries need a connection the first time you use them, after which they are cached too.
Free, private PDF tools with no upload required
ToolHub is a free collection of online file tools built for people who just want to get things done — merge PDF files, split a PDF into separate pages, compress PDFs to shrink their size, convert JPG to PDF, turn a PDF into images, and dozens of other everyday tasks. There are no sign-up walls, no watermarks stamped on your documents and no upload limits holding you back. Every tool is completely free and always will be.
What makes ToolHub different is privacy by design. Most online PDF converters and image editors upload your files to a remote server, process them there and hope you trust them with your data. ToolHub does the opposite — everything runs 100% inside your browser using JavaScript. Your files are read locally on your own device and never leave it. That means sensitive contracts, scanned IDs, financial statements and private photos stay private, because nothing is ever transmitted, stored or logged. It also makes the tools fast: there is no upload wait and no download queue.
Merge, split, compress & convert PDF online
Our PDF tools cover the full workflow. You can merge PDF documents into a single file, split PDF pages into individual files, compress PDF files to email-friendly sizes, rotate or reorder pages, delete unwanted pages, add page numbers, stamp a watermark and even password-protect a document. Need to move between formats? Convert JPG to PDF, PDF to JPG or PNG, extract text with PDF to Text, or convert between Word, Excel, PowerPoint and PDF — all without installing anything.
Free image tools and handy utilities
Beyond documents, ToolHub bundles a full set of image tools: compress images to save space, resize or crop pictures to exact dimensions, rotate photos, merge several images into one and convert between JPG, PNG and WebP. A growing box of utilities rounds things out, including a QR code generator, barcode generator, secure password generator, hash generator, Base64 encoder, word counter, case converter and a ZIP file creator. More than 30 tools live under one clean, ad-light roof, so you no longer have to jump between a dozen different sites for simple file jobs.
Private, no-upload PDF tools that work in any browser
ToolHub runs in any modern browser on desktop, tablet or phone — there is nothing to download or install. If you use it often, you can add it to your home screen as a Progressive Web App (PWA) for one-tap access and offline use. Because the app shell is cached, the interface keeps working even without a connection, and tools that rely on external libraries cache themselves after the first use.
How it works
Using ToolHub is simple. Open the tool you need, drag and drop your file — or click to browse — choose any options such as compression level, page range or output format, then click the action button. The result is generated instantly on your device and downloads straight to your computer or phone. You can drop a file anywhere on the page and it will be picked up automatically. Because there is no server round-trip, large files that would time out on other sites are handled quickly, limited only by your own device's memory rather than an arbitrary server quota.
Popular tasks people use ToolHub for
Common jobs include combining several PDF invoices into one file before sending them to an accountant, splitting a scanned book into single pages, shrinking a bulky presentation so it fits an email attachment limit, converting phone photos into a single PDF portfolio, extracting plain text from a report, generating a QR code for a website or Wi-Fi login, and creating strong random passwords. Students, freelancers, small-business owners and office teams all use ToolHub to skip the clutter of ad-heavy, sign-up-hungry alternatives.
Whether you are a student compressing a PDF assignment, a professional merging reports, or someone who simply needs to convert an image, ToolHub gives you a fast, free and genuinely private place to do it. Pick a tool above and get started — no account, no upload, no hassle.