ToolKnit is a free browser-based toolbox of 94 tools for PDF, image, video, audio and text tasks, plus a World Holidays Hub. Local file tools process files on the user's device, while AI requests go to a configured provider and speech features use a server endpoint. No account is required.
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TrackaLacker lets users follow products and receive alerts when items become in stock or go on sale. It offers free push notifications for restocks and links through to checkout, and it maintains a list of tracked brands. The site also accepts requests for products it does not yet track.
TransferSize is a browser-based file sharing service that sends files up to 50 GB free, with recipients needing no account. Users keep files in a My Files library and can preview videos, photos and documents without downloading. It also offers link controls and file request links.
UBG365 is a site offering a collection of free-to-play games sourced from across the internet. It is aimed at students and office workers wanting relaxing moments during breaks, including in restricted environments. The site states it is constantly updated and accepts game requests by email or links on the site. A live search box helps find games by keyword.
Unshorten.me is a free service that un-shortens URLs created by shortening services such as goo.gl, fb.me, t.co, bit.ly, TinyURL and ow.ly. Paid plans add API request allowances with customer support and secure data.
UUID Tools is an open-source, free online tool and API for generating UUIDs and GUIDs on the fly, including version-1, version-3, version-4 and version-5. The API requires no authentication, allows up to 100 UUIDs per request and is limited to 60 requests per minute per IP address. It also offers a UUID decoder and bulk generator.
Whoxy is a hosted web service that returns parsed WHOIS fields to applications in XML or JSON format over HTTP requests. It follows WHOIS registry referral chains to find the correct servers, and supports 2026 domain extensions including gTLDs and ccTLDs. The page notes a free account signup and query pricing by volume.
WTR-Lab is a free, community-driven novel reading site offering web novels and light novels translated into English using AI models. Users can request novels, vote on requests, and sign up to save reading progress.