Security2 options compared

UUID Generator

Generates UUIDs in bulk for various versions (v1, v3, v4, v5) with both single and multi-UUID output options for seeding test data or assigning identifiers. Researchers, developers, and testers often need unique identifiers for their projects. This tool simplifies the process by providing a variety of UUID versions and bulk generation capabilities, making it easier to assign IDs without manual...

developer-toolsbrowser-basedprivacy-focusedit-toolsdevbolt
Editors’ Top PickBased on community votes
Other OptionsRanked by votes
  1. Screenshot of IT Tools
    02
    IT Tools
    it-tools.tech

    Generates v1, v3, v4, and v5 UUIDs in bulk, with both single and multi-UUID output for seeding test data or assigning...

    Open siteView details

Side by side

UUID Generator options compared

ToolBest forStrengthsLimitations
DevBolt
devbolt.dev
Bulk random UUID v4 generation
  • Browser-based for privacy
  • Bulk output up to 500 at once
  • Only UUID v4
  • No version selection
IT Tools
it-tools.tech
Multiple UUID versions in bulk
  • Generates v1, v3, v4, and v5
  • Single and multi-UUID output
  • Live page not accessible for full details

Buyer's guide

How to choose a uuid generator

If you just need lots of random IDs quickly and value privacy, DevBolt processes everything in your browser with no data sent elsewhere. If your work requires a specific UUID version — such as v1 for timestamp-based IDs, v3 for name-based hashing, or v5 for SHA-256 hashing — IT Tools is the only option among these two.

Questions

UUID Generator FAQ

Can I generate UUIDs offline without sending data to a server?
Yes, DevBolt generates UUIDs entirely in your browser using the native crypto API, so your data never leaves your device.
What UUID versions does IT Tools support?
IT Tools generates v1, v3, v4, and v5 UUIDs, covering timestamp-based, name-based, random, and SHA-256 hash-based identifiers.
Is there a limit on how many UUIDs I can generate at once?
DevBolt supports bulk generation of up to 500 UUIDs at once, while IT Tools' bulk limits are not documented in the available material.
Why would I choose UUIDv4 over UUIDv7 for database keys?
DevBolt's notes mention that UUIDv4 is fully random, which can cause B-tree index fragmentation and slower INSERT performance in databases, while UUIDv7 embeds a timestamp for better index-friendliness.
Can I get a single UUID or do I always get a batch?
Both tools offer single UUID generation alongside multi-UUID output, so you can generate one ID or a batch depending on your needs.
Keep Exploring

Related tools in Security

View all →

Base64 Encoder/Decoder8 options

Encodes and decodes data using the Base64 standard, allowing users to transform information into readable or binary formats. The tool supports decoding outputs back into plain text or as downloadable binary files, offering preview capabilities for immediate verification. Beyond core encoding/decoding functions, it provides related diagnostic utilities and conversions, such as hex dump views, broadening its utility for technical data inspection. Developers, security analysts, and students use this resource to manage data integrity and perform preliminary digital forensics. It is useful for checking how various file types or strings are represented in Base64 format, validating data transmission across different systems, or preparing binary data for further analysis. The comprehensive suite of tools ensures accurate handling of diverse data inputs and outputs.

8 options🛡️ Security

Beaufort Cipher6 options

The Beaufort Cipher provides a streamlined approach to polyalphabetic substitution, offering a classic method for securing text through a self-reciprocal process. While it shares similarities with the Vigenère cipher, it utilizes a specific mathematical operation where the same steps are used for both encryption and decryption. By calculating the difference between a keyword and the message, it creates a complex ciphertext that requires the specific key to reverse, making it a fascinating study in historical cryptography. Security enthusiasts and students of mathematics use this implementation to explore the mechanics of historical ciphers without manual calculations. The interface simplifies the process of applying a repeating keyword across a message, ensuring that each letter is transformed based on its position and the corresponding key character. It serves as a practical resource for those learning about the evolution of cryptographic standards and the logic behind reciprocal encryption systems.

6 options🛡️ Security

Atbash Cipher6 options

Encodes and decodes messages using the Atbash cipher, a classic monoalphabetic substitution method. This system maps each letter to its corresponding letter from the opposing end of the alphabet, such as A becoming Z and B becoming Y. The tool processes any given plaintext or ciphertext, systematically replacing characters according to this simple reciprocal pattern. It provides an easy-to-use interface for performing cryptographic transformations on text input. Individuals interested in learning about historical cryptography, understanding basic encryption techniques, or practicing cryptanalysis use this cipher tool. Students and hobbyists studying computer security and information theory find it useful for grasping the principles of substitution ciphers.

6 options🛡️ Security

Password Generator9 options

Generates strong, random passwords designed to enhance digital security. This tool constructs complex alphanumeric strings by mixing uppercase letters, lowercase letters, numbers, and symbols. To maintain maximum privacy and security, the password creation process occurs entirely within the user's browser environment without transmitting data over the internet. Users simply input their desired complexity or length settings and click generate to receive a unique credential suitable for protecting sensitive accounts. Individuals managing multiple online accounts, such as professional developers, remote workers, or anyone handling confidential information, benefit from this utility. It ensures that each account utilizes a distinct, robust password, significantly reducing the risk associated with credential reuse or weak security measures.

9 options🛡️ Security

ROT13 Cipher2 options

Transforming text with a classic substitution method, the ROT13 Cipher provides a simple way to obfuscate messages and data. It operates by shifting each letter 13 places forward in the alphabet, effectively wrapping around once it reaches the end. Because the English alphabet contains 26 letters, applying the same process twice restores the original content, making it an efficient tool for both encoding and decoding without needing a separate key. Developers, puzzle enthusiasts, and online community members often use this method to hide spoilers, punchlines, or sensitive information from casual viewing. While it does not provide cryptographic security against modern threats, it serves as a reliable way to ensure that text remains unreadable until the recipient chooses to reveal it. This utility supports both the standard ROT13 algorithm and general Caesar cipher shifts, offering flexibility for various obfuscation needs.

2 options🛡️ Security

DNS Lookup3 options

Network administrators and developers use DNS Lookup to retrieve comprehensive domain name system records for any domain. The utility provides a detailed breakdown of essential records, including A, AAAA, CNAME, MX, and TXT entries, allowing users to verify configuration accuracy and troubleshoot connectivity issues. By consolidating technical data into a readable format, it simplifies the process of auditing domain infrastructure and verifying recent changes to name server settings. Specialized security analysis enhances these queries by evaluating email authentication protocols and overall domain health. It checks for the presence and validity of records like SPF, DKIM, and DMARC, which are critical for preventing domain spoofing and improving email deliverability. A dedicated health score offers an immediate assessment of the domain’s configuration status, highlighting potential vulnerabilities or misconfigurations that require attention.

3 options🛡️ Security