For the writers and artists, the Archive holds PDF scans of the 1990 Michael Crichton novel draft, the 1992 screenplay by David Koepp (with scenes never shot), and production design blueprints of the Visitor’s Center. These are completely legal to download as "texts."
If you still want to look for public domain or Creative Commons dinosaur films from 1993 (unlikely but possible):
"1993" dinosaur movie
Because Archive.org allows users to upload files (similar to YouTube in the early days), the database is flooded with "fan rips." These are usually uploaded anonymously. A typical search for "Jurassic Park 1993" on Archive.org yields results like: jurassic park 1993 archiveorg free
Are these legal? No. Not in a strict sense. However, the Internet Archive operates on a notice-and-takedown system. If Universal Pictures issues a DMCA complaint, the file is removed. Consequently, these files tend to be "ephemeral"—they appear, vanish, and reappear under slightly different filenames.
For the archivist and the dedicated fan, these uploads are a goldmine. They preserve the exact audio mix of the 1993 theatrical release (where the T-Rex roar shakes the subwoofer differently than the modern Dolby Atmos track) and the original, unaltered color palette. For the writers and artists, the Archive holds
Let’s be honest: If you download Jurassic Park from Archive.org without paying for it, you are technically infringing on copyright. However, the scale of enforcement is nearly zero for individual users. Universal is much more interested in taking down the uploader than the downloader.
The Ethical Alternative: If you love the 1993 original and want to support the artists, buy a used 1990s VHS tape on eBay for $5. Watch the Archive.org rip for convenience, but own the physical media as a "license." Because Archive
Let’s address the T-Rex in the room. Jurassic Park is a major studio property owned by Universal Pictures. Because of copyright laws, you will not find a pristine, official copy of the 127-minute theatrical cut uploaded by the studio on Archive.org.
However, the keyword "jurassic park 1993 archiveorg free" leads you to something arguably more valuable than a standard MP4 file. The Archive is a library. Just as a physical library has the DVD on the shelf, Archive.org hosts public domain adjacent content, rare supplements, and fan-restored materials.
Here is what you actually can find for free regarding the 1993 classic.