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Dev tools · alternatives · 2026

24 alternatives to CoordConversions NPM Module for Map Coordinate Conversions

I have been working on a project that has multiple repos, all of which have to convert between multiple map coordinate types, so I made an NPM module that allows you to parse and convert between Decimal Degrees, Degrees-Minutes, and Degrees-Minutes-Seconds coordinate types. Niche? Yes. Useful? Also yes (I hope)!

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.

  1. 1

    ⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API - iamkun/dayjs

    2018 · github.com · its alternatives →

  2. 2

    I often need to convert times between time zones, so I built this tool to convert between them quickly and efficiently. 1. Add the cities you want to convert between (this is saved in the browser). 2. Drag on the map until the time on the source city is the time you want. 3. Look at the time at the other city. It's even more helpful to use on a phone since it doesn't require typing to convert between time zones or look up the time in another city (assuming you already added the cities you care about). If you need to convert a time far in the future, you can input the date and time in the…

    Sep 2026 · ishamf.dev · its alternatives →

  3. 3

    Colin here, creator of Nub. I’ve had the general shape of this in mind for years. Nub runs your code with stock `node`, augmented with a `--require` preload hook[0] that adds a transpiler (oxc-powered, packaged as a Node-API add-on), registers a module resolution hook[1], and injects polyfills as needed for APIs like `Worker`, `Temporal`, etc. All purely additive, your code ultimately runs using Node’s actual engine & stdlib implementations. [0] https://nodejs.org/api/cli.html#-require-module [1]…

    Jun 2026 · github.com · its alternatives →

  4. 4

    Free, Easy Map Coordinate Conversions with Batch Processing

    2024 · latlongconverter.online · its alternatives →

  5. 5TJ
  6. 6

    A data aware UI components library for building realtime maps - reactivemaps/README.md at master · appbaseio/reactivemaps

    2017 · github.com · its alternatives →

  7. 7

    If React, Vue, Angular, Bootstrap or Tailwind were countries

    2022 · 4it.bz · its alternatives →

  8. 8

    Convert GPS coordinate format instantly all in your browser

    Mar 2026 · coordconv.com · its alternatives →

  9. 9

    The from-scratch guide to building large language models in NodeJS.

    8d ago · book.humanexperiences.io · its alternatives →

  10. 10

    Convert GPS coordinates between every format, free ⭐

    Jun 2026 · gridconvertpro.com · its alternatives →

  11. 11IE
  12. 12

    Convert Street Addresses into Map Coordinates

    2014 · geocod.io · its alternatives →

  13. 13TJ

    TZIntl.js is a light-weight international date-time conversion library.

    2021 · masswerk.at · its alternatives →

  14. 14
    TypeORM▲81

    Node.js ORM written in TypeScript

    2017 · github.com · its alternatives →

  15. 15

    Convert coordinate systems instantly using the Coordinate

    Jul 2026 · geteasetools.com · its alternatives →

  16. 16

    An online bundler and an npm package size checker

    2021 · bundlejs.com · its alternatives →

  17. 17IM

    Hi HN, I built a little tool to help me get better at remembering country locations on the map: https://learn-worldmap.netlify.app/ It's made from plain HTML/CSS/JS, and not intended to make any money or anything. Just thought that maybe someone else may enjoy it. Also of course happy about any feedback! Cheerz.

    2023 · learn-worldmap.netlify.app · its alternatives →

  18. 18

    Distributed Time Synchronization Service. Contribute to rubrikinc/kronos development by creating an account on GitHub.

    2018 · github.com · its alternatives →

  19. 19

    Hi HN! I thought you might enjoy this even if you don't know much about Elixir. `es6_maps` is a small library that introduces a "shorthand" map creation syntax, similar to shorthand object construction in JavaScript/TypeScript. For those unfamiliar with Elixir, the most interesting aspect might be how it achieves this. `es6_maps` takes advantage of BEAM (Erlang's VM) hot-reload capabilities to amend the Elixir compiler bytecode at runtime, adding functions that expand the shorthand syntax for further compilation. I think it's a nice showcase of the power you can wield (with care) when…

    2024 · github.com · its alternatives →

  20. 20NM
  21. 21

    Contribute to peter-woyzbun/rests development by creating an account on GitHub.

    2018 · github.com · its alternatives →

  22. 22

    Lat/lon to country. Contribute to soorajb/loc2country development by creating an account on GitHub.

    2018 · github.com · its alternatives →

  23. 23

    3D geographic visualization library. Contribute to w3reality/three-geo development by creating an account on GitHub.

    2018 · github.com · its alternatives →

  24. 24

    ⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API - iamkun/dayjs

    2018 · github.com · 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 →