Open Collective

Terser

COLLECTIVE
javascript
ecmascript
stage 4
minifier
uglifier
compiler
Open source
Fiscal Host: Open Source Collective

The fast and efficient minifier for modern JavaScript

This is Terser's pageTerser
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Budget
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About
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Contribute

Become a financial contributor.

Financial Contributions

Recurring contribution
Backer

Become a backer for $5.00 per month and support us

Starts at
$5 USD / month

Latest activity by

+ 17
Recurring contribution
Sponsor

Become a sponsor for $100.00 per month and support us

Starts at
$100 USD / month

Latest activity by

One-time contribution
One-time donor

Join us for $5.00 and support us

Starts at
$5 USD

Latest activity by

+ 7
Recurring contribution
Enterprise sponsor

Join us for $500.00 per month and support us

Starts at
$500 USD / month

Latest activity by

Custom contribution
Donation
Make a custom one-time or recurring contribution.

Latest activity by

+ 59

Top financial contributors

Organizations

1
JS Kongress Munich

$10,301 USD since Jan 2021

2
webpack

$8,500 USD since Dec 2019

3
Airbnb

$5,300 USD since Sep 2021

4
CarGurus

$4,000 USD since Oct 2023

5
Rollup

$1,600 USD since May 2020

6
Chrome's Web Framework & Tools Performance Fund

$500 USD since Dec 2019

7
BestKru

$283 USD since Aug 2024

8
Targeted Web Traffic

$175 USD since Sep 2021

9
Buy Youtube Subscribers

$169 USD since Mar 2025

10
Blastup

$120 USD since Jan 2024

Individuals

1
Instagram Story Viewer

$270 USD since Apr 2025

2
cocopon

$181.42 USD since Oct 2024

3
Story Viewer

$153 USD since Apr 2025

4
Guidebook.BetWinner

$120 USD since Sep 2024

5
Poprey - Buy Instagram Followers

$116 USD since Sep 2024

6
38elements

$100 USD since Oct 2019

7
Michael Bitokhov

$100 USD since Sep 2023

8
Darrin Massena

$100 USD since Dec 2023

9
molily

$80 USD since Nov 2019

10
龙腾道

$77 USD since Sep 2019

Terser is all of us

Our contributors 65

Thank you for supporting Terser.

Fábio Santos

Admin

Rogério Vicente

Admin

JS Kongress M...

$10,301 USD

This donation is made from JS Kongress on behal...

webpack

one-time donor

$8,500 USD

Airbnb

sponsor

$5,300 USD

CarGurus

$4,000 USD

Rollup

sponsor

$1,600 USD

Chrome's Web ...

$500 USD

BestKru

backer

$283 USD

Instagram Sto...

backer

$270 USD

cocopon

$181 USD

Targeted Web ...

backer

$175 USD

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Budget

Transparent and open finances.

Monthly financial contribution to Terser (backer)

Credit from 龙腾道 to Terser •

+$1.00USD
Completed
Contribution #51341
Monthly financial contribution to Terser

Credit from Myinstafollow - Buy Instagram Followers to Terser •

+$1.00USD
Completed
Contribution #879354
Monthly financial contribution to Terser

Credit from Moti ne tirane to Terser •

+$1.00USD
Completed
Contribution #898614
$
Today’s balance

$3,637.44 USD

Total raised

$30,639.35 USD

Total disbursed

$27,001.91 USD

Estimated annual budget

$2,895.00 USD

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About

Terser is a minifier which was born as a fork of the now unmaintained harmony branch of the Uglifyjs project.
Now it's grown into its own thing and is capable of minifying modern JavaScript. I aim to support what's on stage 4, but on some occasions I'll add support for ES features that are still at stage 3.
There is good support for reading and generating source maps provided by the @jridgewell/source-map library.
The codebase uses a custom EcmaScript AST, and can read and output ESTree formatted ASTs like the ones generated by acorn.

Our team

Fábio Santos

Admin

Rogério Vicente

Admin