developit/microbundle

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📦 Zero-configuration bundler for tiny modules.

Stars: 8.1k
Forks: 358
Open beginner issues: 2
Indexed issues: 76

Dominant language: JavaScript
License: MIT
Last GitHub push: Oct 24, 2025
Latest indexed: Sep 15, 2026
Contributing guide: No contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

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Security vulnerability via transitive dependency on `serialize-javascript` via `rollup-plugin-terser` Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

developit/microbundle#1100 · 4 comments · Opened Apr 30, 2026
package.json types/main/module take precedence over conditional exports Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

developit/microbundle#1094 · 1 comment · Opened Oct 15, 2025
Disable minification by default Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

developit/microbundle#1093 · 3 comments · 1 reaction · Opened Jul 21, 2025
[Feature request] Use sourcemap files from imports Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

developit/microbundle#1092 · Opened May 20, 2025
Simultaneous builds are unreliable Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

developit/microbundle#1089 · 1 comment · Opened Jan 24, 2025
Error: Unexpected token when including a file with `declare namespace` in it. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

developit/microbundle#1088 · 8 comments · Opened Dec 10, 2024
Possible issue with missing type declaration files for ESM exports Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

developit/microbundle#1085 · 15 comments · Opened Jul 6, 2024
Types haven't been bundled by microbundle Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

developit/microbundle#1084 · 2 comments · Opened Jul 3, 2024
Generates Broken CommonJS From Typescript Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

developit/microbundle#1079 · 3 comments · Opened May 24, 2024
update rollup from 2.35.1 (2020-12-14) to at least 3.16.0 (2023-02-17), or ideally latest (4.6.1, 2023-11-30) Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

developit/microbundle#1067 · 12 comments · 2 reactions · Opened Dec 4, 2023
Add `x_google_ignoreList` (Ignore-listing code) support to sourcemaps Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

developit/microbundle#1066 · 9 comments · Opened Dec 2, 2023
Bundled type definitions for bundled dependencies? Open

TypeScript

Difficulty 5/5 Over a week Newbie friendliness 25/100

developit/microbundle#1050 · 5 comments · 1 reaction · Opened Jun 20, 2023
'use client' Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

developit/microbundle#1049 · 10 comments · 2 reactions · Opened Jun 19, 2023
[Bug] build failed on deconstructing rest parameters Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

developit/microbundle#1039 · 1 comment · 2 reactions · Opened Apr 18, 2023
[Bug] Wrong function scope with rest parameters after transpiled Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

developit/microbundle#1037 · 9 comments · Opened Apr 3, 2023
Failed to resolve the module node:* when target ≠ "node" Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

developit/microbundle#1036 · 2 comments · Opened Mar 21, 2023
Granular compress option Open

Feature Request

Difficulty 3/5 1-2 days Newbie friendliness 35/100

developit/microbundle#1031 · 3 comments · 1 reaction · Opened Mar 3, 2023
A typescript package that supports both commonjs and esmodule should generate `.d.ts` and `.d.cts` type files, now only `.d.ts` Open

TypeScript upstream

Difficulty 4/5 3-5 days Newbie friendliness 35/100

developit/microbundle#1030 · 8 comments · 3 reactions · Opened Mar 3, 2023
[Question] Sub-exports depending on main export bundle the entire main-export. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

developit/microbundle#1027 · 3 comments · Opened Feb 18, 2023
Outdated dependencies Open

help wanted :wave:

Difficulty 3/5 1-2 days Newbie friendliness 30/100

developit/microbundle#1025 · 3 comments · 1 reaction · Opened Feb 6, 2023
--define skips `=` symbol in strings Open

help wanted :wave:

Difficulty 3/5 1-2 days Newbie friendliness 45/100

developit/microbundle#1024 · 2 comments · Opened Feb 5, 2023
a possible way to set the name of the bundled css file in dist folder Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

developit/microbundle#1018 · 1 comment · Opened Jan 14, 2023
How to set file names for chunk bundles Open

Feature Request

Difficulty 3/5 1-2 days Newbie friendliness 35/100

developit/microbundle#1013 · 1 comment · Opened Nov 17, 2022
Add `to` option to `rollup-plugin-postcss` Open

CSS

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

developit/microbundle#1002 · Opened Sep 25, 2022
[Transpiling] Rest parameters with async bug Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

developit/microbundle#1001 · 1 reaction · Opened Sep 18, 2022
IIFE uses the same name format as CJS? Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

developit/microbundle#998 · 1 comment · 1 reaction · Opened Sep 8, 2022
Babel targets configuration for browser and node builds Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

developit/microbundle#982 · 4 comments · Opened Jul 25, 2022
[Question] How to specify different formats for multiple exports? Open

question :grey_question:

Difficulty 4/5 3-5 days Newbie friendliness 25/100

developit/microbundle#973 · 10 comments · Opened Jun 21, 2022
Option to use a faster transpile/bundle engine? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

developit/microbundle#943 · 3 comments · 17 reactions · Opened Mar 31, 2022
How to target browsers with es6 support? Open

Difficulty 4/5 3-5 days Newbie friendliness 39/100

developit/microbundle#942 · 4 comments · 1 reaction · Opened Mar 31, 2022
Maybe should compile `node_modules` with babel when use inline dependencies Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

developit/microbundle#936 · 7 comments · 2 reactions · Opened Mar 11, 2022
add Polyfill Open

question :grey_question:

Difficulty 4/5 3-5 days Newbie friendliness 32/100

developit/microbundle#907 · 3 comments · Opened Oct 29, 2021
microbundle fails with '(terser plugin) Error: Call retries were exceeded' Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

developit/microbundle#905 · 2 comments · Opened Oct 25, 2021
load raw files (ex: html) Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

developit/microbundle#898 · 1 comment · 2 reactions · Opened Sep 16, 2021
Should babelHelpers be `runtime` ? Open

discussion

Difficulty 4/5 3-5 days Newbie friendliness 35/100

developit/microbundle#893 · 2 comments · Opened Sep 13, 2021
Mangling non-main-entry-export names Open

needs more info

Difficulty 4/5 3-5 days Newbie friendliness 35/100

developit/microbundle#892 · 1 comment · Opened Sep 10, 2021
padding merge Open

upstream

Difficulty 4/5 3-5 days Newbie friendliness 20/100

developit/microbundle#891 · 1 comment · Opened Sep 10, 2021
Bug: Shouldn't fall back to pkg name in the absence of output flag & pkg main Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

developit/microbundle#884 · 2 reactions · Opened Aug 26, 2021
Cannot import external es6 module correctly Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

developit/microbundle#881 · 1 comment · Opened Aug 19, 2021
When providing `--css-modules insertHashHere` microbundle will treat all CSS files as CSS modules Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

developit/microbundle#876 · 4 reactions · Opened Aug 12, 2021
Cannot read property 'value' of undefined Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

developit/microbundle#873 · 5 comments · Opened Aug 1, 2021
microbundle out of memory on build Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

developit/microbundle#870 · 3 comments · Opened Jul 24, 2021
react-jsx does not work with Preact Open

TypeScript

Difficulty 3/5 1-2 days Newbie friendliness 35/100

developit/microbundle#857 · 4 comments · Opened Jun 17, 2021
Typescript declaration files gets built in incorrect directory Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

developit/microbundle#854 · 8 comments · 6 reactions · Opened Jun 14, 2021
Transpiling local package dependencies that use TS file as entry point Open

TypeScript upstream

Difficulty 5/5 Over a week Newbie friendliness 28/100

developit/microbundle#845 · 6 comments · Opened Jun 2, 2021
Babel transform syntax error: Unable to handle nested super.prop usage Open

upstream

Difficulty 4/5 3-5 days Newbie friendliness 30/100

developit/microbundle#835 · 1 comment · Opened Apr 28, 2021
Ability to get unbundled cjs/es modules as in version 0.4.4 Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

developit/microbundle#828 · 1 comment · Opened Mar 30, 2021
Document possible Babel customizations Open

question :grey_question:

Difficulty 3/5 1-2 days Newbie friendliness 38/100

developit/microbundle#827 · 1 comment · Opened Mar 30, 2021
Not generating correct names for different output formats Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

developit/microbundle#825 · 6 comments · 5 reactions · Opened Mar 29, 2021
Broken build due to mangled dependency props Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

developit/microbundle#819 · 3 comments · Opened Mar 23, 2021

developit/microbundle

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