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Dev tools · alternatives · 2026

24 alternatives to UUIDv7

Time-ordered UUIDs, decoded and done right (UUIDv7 RFC 9562)

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    I use UUIDv7's in multiple places as an efficient index in Postgres. When querying this data I usually need to be able to query between a time range so wanted to have a quick way to generate a reference ID that I could use in a BETWEEN query. All the simple, fast tools I found online were focused on generating bulk ids or converting from an ID to a timestamp rather than the other way around, so I wrote one myself. For example if I wanted to find everything that happened between 2025-03-11T13:00:00.000Z and 2025-03-11T13:59:59.999Z I can type in the timestamp, select earliest (or latest) to…

    2025 · uuidv7.org · its alternatives →

  2. 2

    Timeflake is a 128-bit, roughly-ordered, URL-safe UUID. - anthonynsimon/timeflake

    2021 · github.com · its alternatives →

  3. 3

    Generate UUIDs for APIs, databases, and developers

    Jun 2026 · uuidbuilder.com · its alternatives →

  4. 4

    Free online UUID generator tool

    2025 · randomuuid.online · its alternatives →

  5. 5

    A generator library for concise, unambiguous and URL-safe UUIDs - lithammer/shortuuid

    2015 · github.com · its alternatives →

  6. 6

    Generate UUID v1, v4 & v7 instantly - free & browser-based

    May 2026 · uuid-generator-bay.vercel.app · its alternatives →

  7. 7

    Timeflake is a 128-bit, roughly-ordered, URL-safe UUID. - timeflake/README.md at master · anthonynsimon/timeflake

    2020 · github.com · its alternatives →

  8. 8

    A C++ HTML template engine that uses compile time HTML parsing - rep-movsd/see-phit

    2017 · github.com · its alternatives →

  9. 9

    Generate timestamps for your video in seconds

    2024 · timestamper.vercel.app · its alternatives →

  10. 10

    Versions 1, 4, 6 and 7 "Random" UUID Generator

    2024 · uuidgenerator.ai · its alternatives →

  11. 11

    Hey HN, I find myself reaching for tools like it-tools.tech or other random sites every now and then during development or debugging. So, I built a toolkit with a sane and simple CLI interface for most of those tools. For the curious and lazy, at the moment, ut has tools for, - Encoding: base64 (encode, decode), url (encode, decode) - Hashing: md5, sha1, sha224, sha256, sha384, sha512 - Data Generation: uuid (v1, v3, v4, v5), token, lorem, random - Text Processing: case (lower, upper, camel, title, constant, header, sentence, snake), pretty-print, diff - Development Tools: calc, json…

    2025 · github.com · its alternatives →

  12. 12

    Generate secure UUIDs instantly for every project

    Jul 2026 · freewww.com · its alternatives →

  13. 13

    Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy - ijl/orjson

    2018 · github.com · its alternatives →

  14. 14

    An interactive tour of UUIDs: what every nibble means, and how versions 1, 3, 4, 5, 6, 7 and 8 fill the 128 bits (RFC 9562).

    2012 · uuid.me · its alternatives →

  15. 15

    Free UUID Generator – Generate Random UUID v4 Instantly

    Aug 2026 · technofirstonline.com · its alternatives →

  16. 16

    Hey folks! I know CSV parsers (especially in JS) aren't terribly exciting and someone writes a "better" one every week. I'm in the middle of my parental leave, and this was a project that came out of me looking for the fastest/smallest CSV parser. It all started so innocently, and then turned into a benchmark-validation-athon; the library itself took ~2 weeks to write, but the performance comparisons took another ~4 weeks (on and off). The benchmarks were a huge effort, but I think they are the most thorough to date, both in breadth and in depth, so hopefully you find them useful:…

    2023 · github.com · its alternatives →

  17. 17

    shorthand uuid generator using Vanilla Javascript. just open page and the magic occurs.

    2015 · uuidgenerator.org · its alternatives →

  18. 18

    Generate DOT description for postgres db schema. Contribute to akarki15/dbdot development by creating an account on GitHub.

    2019 · github.com · its alternatives →

  19. 19

    Meta programming utilities for C++14. Merged in matt-42/lithium - matt-42/iod

    2014 · github.com · its alternatives →

  20. 20QG
  21. 21

    A cryptographically random identifier

    May 2026 · uuidly.binaygupta.in · its alternatives →

  22. 22

    Serialization code generator for QUICK struct content comparison - CovenantSQL/HashStablePack

    2019 · github.com · its alternatives →

  23. 23AF

    Serialization framework with some interesting numbers: 10-20x faster on nested objects than json/protobuf. Technical approach: compile-time codegen (no reflection), compact binary protocol with meta-packing, little-endian layout optimized for modern CPUs. Unique features that other fast serializers don't have: - Cross-language without IDL files (Rust ↔ Python/Java/Go) - Trait object serialization (Box) - Automatic circular reference handling - Schema evolution without coordination Happy to discuss design trade-offs. Benchmarks:…

    Oct 2025 · fory.apache.org · its alternatives →

  24. 24UN

    Need a fast, easy-to-use, and memorable UUID/Guid generator? Built with the power and elegance of F#! https://uuid.now is here! One-click copy Zero UUID support Browser-based (Crypto API) Fully open source Explore the source code here: https://github.com/OnurGumus/uuid.now

    2024 · uuid.now · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →