Toolkit4Me is a collection of free, browser-based tools for everyday document and image tasks -- converting a PDF to Word, merging PDFs, compressing a photo, pulling text out of a scan. No account, subscription, or email address required.
Some tools run entirely in your browser and never upload your file anywhere. Tools that need server-side processing upload your file over an encrypted connection and delete it automatically one hour later, whether or not you downloaded the result.
The site is supported by advertising rather than paywalls, so every tool stays free and fully usable.