NullKit

NullKit provides focused AI-adjacent and utility tools that run directly in your browser—so you can work with images, PDFs, and files without uploading personal documents or photos to a third-party server.

With no account required, you can open a tool and start processing immediately. Your selected files stay on your device, and results download as new files, leaving your originals untouched.

Common use cases include converting HEIC photos, removing image metadata, compressing or resizing images, working with PDFs (merge, redact, extract pages, apply passwords, compare), scanning/cleaning links and QR content, and calculating file checksums. Each tool defines what it supports and how local processing works, including practical trade-offs and limits for your browser and device.

Do I need an account to use NullKit tools?

No—open a tool and begin processing right away without creating an account.

Are my files uploaded to a server while processing?

No. Selected files stay on your device, and results download as new files.

Will my original files be modified?

No—NullKit keeps originals untouched and provides processed output as downloads.

What kinds of tasks can I do with NullKit?

You can convert formats (like HEIC to JPG/PNG/WebP), compress or resize images, remove metadata, redact sensitive info, and perform multiple PDF utilities such as merge, extract, password protection, compare, and OCR.

Does local processing guarantee everything will always work perfectly?

Local processing protects you from upload pipelines, but browser and device limits still apply. Each tool clarifies supported formats, limits, and known trade-offs.

What does “narrow, honest boundary” mean in NullKit?

Tools clearly describe what they do, what formats they support, where processing happens (locally), and what trade-offs/limits to expect—so expectations stay accurate.