Package
is-base64
Predicate that returns true if base64 string.
Key numbers
As of 25 Sept 2026
- Weekly downloads
- 782.7k
- +82% over 12 months
- Gzip bundle size
- -
- No Bundlephobia data
- Dependencies
- 0
- Direct, from package.json
- Last release
- 6 years ago
- v1.1.0
- GitHub stars
- 31
- 4 forks
- Open issues / PRs
- 1 / 0
- Contributors
- -
- Commits, last 52 weeks
- 0
Downloads
Last week 2026-09-15 to 2026-09-21
782,698 downloads last week, 3,450,455 in the last month. The 12-month change of +82% compares the average of the last 4 weeks with the first 4 weeks of the series.
- Releases, last 12 months
- 09 in total
- Latest version
- 1.1.0, 4 Mar 20206 years ago
- First published
- 15 May 2015
- Last push to GitHub
- 4 Mar 20202,396 days before the snapshot
- Repository archived
- Yes
- Open issues
- 1
- Open pull requests
- 0
- Commits, last 52 weeks
- 0
- Dependents on npm
- -
Major versions
- v1 first release 1.0.0, 31 Aug 2019
- v0 first release 0.0.1, 15 May 2015
Recent releases
| Version | Published |
|---|---|
| 1.1.0 | 4 Mar 2020 |
| 1.0.0 | 31 Aug 2019 |
| 0.1.0 | 26 Oct 2018 |
| 0.0.6 | 24 Jul 2018 |
| 0.0.5 | 1 Jun 2018 |
| 0.0.4 | 20 Jun 2017 |
| 0.0.3 | 20 Jun 2017 |
| 0.0.2 | 18 Nov 2016 |
| 0.0.1 | 15 May 2015 |
- Module format
- CommonJSFrom package.json type, main and exports fields
- TypeScript types
- None
- Node.js engine range
- Not declared
- Runtimes
- -
- Unpacked size (npm)
- 11 kB
- Dependencies (0)
- None
npm install is-base64- jsDelivr
https://cdn.jsdelivr.net/npm/is-base64@1.1.0/ - unpkg
https://unpkg.com/is-base64@1.1.0/ - esm.sh
https://esm.sh/is-base64@1.1.0
| Package | Weekly downloads | Gzip | Last release | Module | Comparison |
|---|---|---|---|---|---|
| libbase64 | 4.8m | - | 2 years ago | CommonJS | - |
| libmime | 6.6m | - | 9 days ago | CommonJS | - |
| uuid-validate | 113.9k | - | 8 years ago | CommonJS | - |
| gulp-rev | 66.8k | - | 10 months ago | ESM only | - |
| wsemi | 24k | - | 2 days ago | CommonJS | - |
Indexability: Indexed.