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Digital Utility Kit
30 file tools that never upload your files
Compress and convert images, merge and split PDFs, format JSON, generate QR codes and hashes — all running entirely in your browser. Your files never reach a server. There is no upload step, no account, and no queue. Open the tool, drop the file, get the result. The tools are also honest about their limits: the image compressor returns your original file whenever compression would make it bigger, instead of handing back a larger file labelled "compressed". Free, no sign-up, works on mobile.
I built this because I needed to merge two PDFs on a work computer and didn’t feel comfortable uploading documents to a stranger’s server.
Everything runs in the browser: Canvas for images, pdf-lib for PDFs, and WebAssembly for HEIC. The server serves static HTML and nothing else.
There are no third-party CDNs, so the privacy promise can be verified directly in the browser’s network panel.
If there’s a tool you’d like to see added, let me know.
About Digital Utility Kit on Product Hunt
“30 file tools that never upload your files”
Digital Utility Kit was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #4 on the daily leaderboard. Compress and convert images, merge and split PDFs, format JSON, generate QR codes and hashes — all running entirely in your browser. Your files never reach a server. There is no upload step, no account, and no queue. Open the tool, drop the file, get the result. The tools are also honest about their limits: the image compressor returns your original file whenever compression would make it bigger, instead of handing back a larger file labelled "compressed". Free, no sign-up, works on mobile.
On the analytics side, Digital Utility Kit competes within Web App, Productivity and Developer Tools — topics that collectively have 1.3M followers on Product Hunt. The dashboard above tracks how Digital Utility Kit performed against the three products that launched closest to it on the same day.
Who hunted Digital Utility Kit?
Digital Utility Kit was hunted by Takamori Labs. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Digital Utility Kit including community comment highlights and product details, visit the product overview.
Takamori Labs