SQLean relies heavily on third-party SQLite extensions and open source libraries. Some of them are public domain, others use free permissive licenses. SQLean does not use code distributed under copyleft or non-free licenses.
| Library | Author | License |
|---|---|---|
| cryptii | Fränz Friederes | MIT License |
| crypto-algorithms | Brad Conte | Public Domain |
| eval.c | D. Richard Hipp | Public Domain |
| extension-functions.c | Liam Healy | Public Domain |
| fileio.c | D. Richard Hipp | Public Domain |
| libstrcmp | Ross Bayer | MIT License |
| percentile.c | D. Richard Hipp | Public Domain |
| pcre2 | Philip Hazel | 3-Clause BSD License |
| regexp.old | Henry Spencer | Spencer License 94 |
| series.c | D. Richard Hipp | Public Domain |
| sha1.c | D. Richard Hipp | Public Domain |
| sha2.c | Aaron D. Gifford | 3-Clause BSD License |
| sqlite3_unicode | Unknown Author | Public Domain |
| statement_vtab.c | 0x09 | Public Domain |
| uuid.c | D. Richard Hipp | Public Domain |
| vsv.c | Keith Medcalf | Public Domain |