Error 2143 is a safety feature, not a bug. Oracle is telling you that the file you downloaded isn’t exactly what they published. By clearing your cache, downloading the correct “with JDK” bundle, and manually verifying the checksum, you’ll get past this error in minutes.
Once verified, Oracle SQL Developer is one of the most reliable database tools you can use.
Have you encountered Error 2143? Let me know in the comments which fix worked for you.
Need the latest direct link? Always check oracle.com/tools/downloads/sql-developer-downloads for the current version. oracle sql developer download 2143 download verified
Only download from Oracle’s official site:
Error 2143 typically occurs when the Oracle Universal Installer or the built-in download manager detects a mismatch between the downloaded file and its expected checksum or digital signature.
Common causes:
| Action | Status | | :--- | :--- | | Cleared browser cache | ☐ | | Disabled VPN/download manager | ☐ | | Downloaded from official Oracle site | ☐ | | Used “with JDK” bundle | ☐ | | Verified SHA256 checksum | ☐ | | Extracted ZIP before launching | ☐ |
| File | SHA-256 Hash |
|------|---------------|
| SQLDeveloper-21.4.3.2143-x64.exe | 3f7b2a9c4e6d1f8b0c3a5e7d9f2b1a4c6e8d0f2b3a5c7e9d1f3b5a7c9e1d3f5b (Example – obtain official from Oracle) |
| sqldeveloper-21.4.3.2143-no-jre.zip | 2a4b6c8d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a1b2c3d4e5f6a7b |
To get the actual, current hashes:
Follow these steps to bypass the error and get a clean installation.
sqldeveloper.exe.java.exe.
Released in early 2022, version 21.4.3 is often preferred by DBAs and developers who: