About SLBY

A free and practical URL shortener

SLBY turns long web addresses into short, easy-to-share links. A basic short link can be created without registration; anonymous links receive a generated address and expire one year after creation.

A free account unlocks persistent links and a personal management area. Registered users can search, filter and sort their links, review activity, and change a destination without replacing the short address. Google sign-in is also supported alongside the regular account flow.

Features

• Custom short addresses: Registered users can replace a generated address with an available, memorable alias.
• Password protection: Restrict access to a destination with a password. New passwords are stored using ASP.NET Core's secure password hashing rather than reversible text.
• Expiration dates: Set a date after which a short link will no longer redirect visitors.
• Click statistics: See total clicks, today's activity, and daily trends over selectable time periods.
• QR codes: Generate QR codes for the short link and its destination from the link details page.
• Link management: Edit the destination, alias, password, expiration date, search visibility, and enabled state from your account.
• Easy sharing: Share links through the available sharing menu and supported social networks.
• Installable web app: On supported browsers, SLBY can be installed as a Progressive Web App (PWA) for quicker access on desktop and mobile.

Security and reliability

• Link passwords are protected with ASP.NET Core password hashing, and older password records are upgraded after successful verification.
• Repeated attempts to unlock protected links are limited to reduce password guessing.
• Login, account-email operations, and link creation use rate limits and abuse controls. Additional checks appear after repeated failed sign-in attempts.
• Reserved and blocked aliases are rejected, and submitted destinations are validated as HTTP or HTTPS URLs.

Redirect counters and activity logging are handled through dedicated services and optimized database operations, helping frequently used links remain responsive.

Browser capabilities differ: PWA installation and standalone mode depend on support provided by your browser and operating system.

SLBY is developed and maintained by Mohsen Eslamifar using C# and ASP.NET Core. The service is continually refined with a focus on security, performance, and a straightforward user experience. For questions or feedback, use the contact links below.

Thank you for using SLBY.