Dev tools · alternatives · 2026

24 alternatives to Fast 2kB date library alternative to Moment.js with the same API

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

Fast.js is a lightweight date library designed for developers who need Moment.js-compatible functionality without the bulk. At just 2 kilobytes, it offers the same API as Moment.js while significantly reducing file… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Fast 2kB date library alternative to Moment.js with the same API launched in 2018; newer entries below may have overtaken it.

1
Day.js▲10
2KB immutable date time library alternative to Moment
2018 · github.com · its alternatives →
2
Day.js 1.6 locale and plugins 2kb moment.js alternative with same API▲6
⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API - iamkun/dayjs
2018 · github.com · its alternatives →
3
Moment.js▲279
Parse, validate, manipulate, and display dates in JavaScript
2015 · momentjs.com · its alternatives →
4
Fast.js – faster reimplementations of native JavaScript functions▲323
Faster user-land reimplementations for several common builtin native JavaScript functions. - codemix/fast.js
2014 · github.com · its alternatives →
5JL
JS library to make your website instant▲426
http://instantclick.io/ It seems the internet architecture won't bring us instant websites anytime soon. So here is a hack. I released this JS library last month (today is version 2.0 release, fixing v1.0's rough edges), it makes use of HTML5's pushState and preloading to make a website instant. It works like this: before clicking on a link, you'll hover over it. And there's a delay of 200-300 ms between these two events. InstantClick uses this delay to preload a page, when you click on a link it will display instantly in most case. (You can test on the website.) That's…
2014 · its alternatives →
6
uPlot.js – An exceptionally fast, tiny time series chart▲260
📈 A small, fast chart for time series, lines, areas, ohlc & bars - leeoniya/uPlot
2019 · github.com · its alternatives →
7
Moon – fast 7k Vue alternative▲268
🌙 The minimal & fast library for functional user interfaces - kbrsh/moon
2017 · github.com · its alternatives →
8
Postgres.js – Fastest Full-Featured PostgreSQL Client for Node and Deno▲257
Postgres.js - The Fastest full featured PostgreSQL client for Node.js, Deno, Bun and CloudFlare - porsager/postgres
2022 · github.com · its alternatives →
9
1kb JavaScript library for building front end applications▲187
1kB-ish JavaScript framework for building hypertext applications - hyperapp/hyperapp
2017 · github.com · its alternatives →
10
Booking.js by Timekit▲535
Make a beautiful embeddable booking widget in minutes.
2015 · timekit.io · its alternatives →
11
Nerv – A fast React alternative, compatible with IE8 and React 16▲133
A blazing fast React alternative, compatible with IE8 and React 16. - NervJS/nerv
2018 · github.com · its alternatives →
12
Million.js▲153
A fast, <1kb virtual DOM
2021 · github.com · its alternatives →
13
1 KB JavaScript library for building front end apps▲242
1kB-ish JavaScript framework for building hypertext applications - hyperapp/hyperapp
2017 · github.com · its alternatives →
14GJ
Grid.js – Advanced table library that works everywhere▲390
Grid.js is a lightweight JavaScript table plugin that works on all web browsers and devices. Grid.js is open-source and it helps you create advanced tables in seconds!
2020 · gridjs.io · its alternatives →
15
Faster FastAPI with simdjson and io_uring on Linux 5.19▲290
A few months ago, I benchmarked FastAPI on an i9 MacBook Pro. I couldn't believe my eyes. A primary REST endpoint to `sum` two integers took 6 milliseconds to evaluate. It is okay if you are targeting a server in another city, but it should be less when your client and server apps are running on the same machine. FastAPI would have bottleneck-ed the inference of our lightweight UForm neural networks recently trending on HN under the title "Beating OpenAI CLIP with 100x less data and compute". (Thank you all for the kind words!) So I wrote another library. It has been a while since I have…
2023 · github.com · its alternatives →
16
Faster.js – a micro-optimizing JavaScript compiler▲89
faster.js is a Babel plugin that compiles idiomatic Javascript to faster, micro-optimized Javascript. - vzhou842/faster.js
2018 · github.com · its alternatives →
17
Python JSON library in Rust, faster than ujson▲40
Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy - ijl/orjson
2018 · github.com · its alternatives →
18TJ
Tzintl.js – International Date-Time Conversion▲56
TZIntl.js is a light-weight international date-time conversion library.
2021 · masswerk.at · its alternatives →
19
Advanced Mathematics Library for Node.js and JavaScript▲123
Advanced Mathematics Library for Node.js and JavaScript - numbers/numbers.js
2012 · github.com · its alternatives →
20
1 KB JavaScript library for building applications▲116
1kB-ish JavaScript framework for building hypertext applications - hyperapp/hyperapp
2017 · github.com · its alternatives →
21TJ
Total.js – Low-code development (Node-RED alternative)▲216
2023 · totaljs.com · its alternatives →
22
dateDropper Javascript▲156
The lightest and the most complete javascript date picker
2021 · felixg.io · its alternatives →
23WJ
Way.js – Simple, persistent, framework-agnostic two-way databinding▲162
2014 · gwendall.github.io · its alternatives →
24
A fast JSON library for Go▲119
Fast JSON encoder/decoder compatible with encoding/json for Go - goccy/go-json
2021 · 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 →