Generate UUID v4 unique identifiers. Generate one or up to 50 at once. Cryptographically random.
Files processed securely via encrypted connection. Automatically deleted after processing. Never stored or shared.
A UUID (Universally Unique Identifier) is a 128-bit label formatted as 8-4-4-4-12 hexadecimal digits separated by hyphens. Our generator creates cryptographically random Version 4 UUIDs — suitable for database primary keys, session identifiers, file names, and API resource IDs.
Sequential integer IDs are predictable — anyone can guess that the next record is ID 1001. This creates security risks through enumeration attacks and makes it difficult to merge records from multiple systems without ID conflicts. UUIDs are generated independently by any system without coordination, yet collisions are so unlikely as to be practically impossible at any realistic scale.
Using UUIDs as database primary keys rather than sequential integers offers several advantages for distributed systems. Multiple application servers can generate new record IDs independently without coordinating with a central sequence generator, eliminating a potential bottleneck. UUIDs make it safe to merge databases from different sources without ID conflicts. They also prevent ID enumeration attacks where attackers cycle through sequential IDs to access resources they should not be able to see or access.
UUIDs are 128 bits compared to 32-bit or 64-bit integers, making them larger to store and slightly slower to index in databases. For very high-volume tables with billions of rows, this size difference can affect query performance. Version 7 UUIDs which are time-ordered mitigate this by generating UUIDs that sort chronologically, improving B-tree index efficiency. For most applications with under 100 million records, the performance difference between UUID and integer primary keys is negligible and the benefits of UUIDs outweigh the additional storage cost.
Quickly.fit has been built from the ground up to solve a simple problem: professional-grade tools are too expensive and too complicated for everyday users. Adobe Acrobat costs hundreds of dollars per year. Photoshop has a steep learning curve and a monthly subscription. Dedicated developer tools require command-line knowledge. Quickly.fit gives everyone access to the same capabilities with zero cost, zero learning curve, and zero installation. Open a browser, use the tool, get the result.
Unlike many online tools that require registration to access full functionality, Quickly.fit gives you complete access to every tool without creating an account, providing an email address, or entering any personal information. Your uploaded files are processed in a secure environment and deleted automatically after completion. For text-based tools, your input never leaves your browser at all. This privacy-first approach means you can confidently process sensitive documents, financial data, and personal files without concern about where your information ends up.
Quickly.fit runs on a reliable cloud infrastructure that is available around the clock, every day of the year. Whether you need to compress a PDF at midnight before an early morning submission deadline, convert an image on a weekend, or generate a password on a public holiday, the tools are always available. No appointment needed, no business hours to observe, no waiting for a software download or update to complete. The tool is ready whenever you need it, from any device with a modern web browser.