Online Documentation Downloadable Version
Current Versions
Firebird 5 Quick Start Guide (English) PDF available
Firebird 5.0 Language Reference - multi-page (English) PDF available
Firebird 4.0 Language Reference - multi-page (English) PDF available
Firebird 4.0 Sprachreferenz (German) PDF available
Firebird 3 Quick Start Guide PDF available
Firebird 3.0 Language Reference - multi-page (English) PDF available
Firebird 3.0 Sprachreferenz (German) PDF available
Firebird 5.0 Language Reference (Russian) PDF available
Firebird 4.0 Language Reference (Russian) PDF available
Firebird 3.0 Language Reference (Russian) PDF available
Firebird 3.0 Developer's Guide (Russian) PDF available
Firebird 3.0 Developer's Guide (English) PDF available
Sample project sources:
 
Firebird 2.5 Language Reference - multi-page (English) PDF available
Firebird 2.5 Language Reference (German) PDF available
Firebird 2.5 Language Reference (Russian) PDF available
Firebird 2.5 Quick Start Guide PDF available
Firebird 2.5 Language Reference Update
Firebird 2.5 Language Reference Update (Russian)
PDF available
PDF available
Firebird Command Line Tools
Firebird's isql Interactive SQL Utility PDF available
Firebird's gsec User Management Utility PDF available
Firebird's gbak Backup and Restore Utility
Firebird's gbak Backup and Restore Utility (German)
PDF available
PDF available
Firebird's nbackup tool
Firebird's nbackup tool (German)
Firebird's nbackup tool (French)
Firebird's nbackup tool (Dutch)
Firebird's nbackup tool (Russian)
PDF available
PDF available
PDF available
PDF available
PDF available
Firebird's gstat Database Statistics Reporting Tool
Firebird's gstat Database Statistics Reporting Tool (German)
PDF available
PDF available
Firebird's gfix Database Housekeeping Utility PDF available
Firebird's fbmgr SuperServer Manager PDF available
Firebird's gsplit Backup File Splitting Filter PDF available
Firebird Shell Scripts
Firebird Shell Scripts (German)
PDF available
PDF available
Firebird command-line utilities (Brazilian Portuguese)
Firebird command-line utilities (Russian)
PDF available
PDF available
Various User Manuals
Setting up Firebird on Ubuntu Linux
Setting up Firebird on Ubuntu Linux (Italian)
PDF available
PDF available
Firebird Generator Guide
Firebird Generator Guide (German)
Firebird Generator Guide (Russian)
PDF available
PDF available
PDF available
Firebird Null Guide
Firebird Null Guide (Spanish)
Firebird Null Guide (French)
Firebird Null Guide (Italian)
Firebird Null Guide (Russian)
PDF available
PDF available
PDF available
PDF available
PDF available
MS SQL to Firebird Migration Guide
MS SQL to Firebird Migration Guide (Russian)
PDF available
PDF available
Firebird File and Metadata Security
Firebird File and Metadata Security (German)
Firebird File and Metadata Security (Brazilian Portuguese)
Firebird File and Metadata Security (Russian)
PDF available
PDF available
PDF available
PDF available
Using ZeBeDee with Firebird PDF available
Embedded SQL Guide for RM/Cobol PDF available
Using Firebird (work in progress) PDF available
Writing Firebird UDRs in Pascal
Writing Firebird UDRs in Pascal (Russian)
PDF available
PDF available
Reference Material
Firebird Database Limits  
Firebird 2.1 Error Codes PDF available
Firebird Date Literals  
Locale/Collation Charts (A. Barkov, MariaDB)  
Firebird SQL Conformance  
ISO 9075 SQL Standard Keywords/Reserved Words  
Firebird Internals (Work In Progress) PDF available
Firebird Wire Protocol PDF available
Firebird Cache
Firebird Cache (German)
PDF available
PDF available
Firebird Licenses
InterBase Public License  
Initial Developer's Public License  
Public Documentation License
Public Documentation License (French)
PDF available
 
Legacy Versions (no longer supported)
Firebird 2.0 and 2.1 Quick Start Guide
Firebird 2.0 and 2.1 Quick Start Guide (Italian)
Firebird 2.0 and 2.1 Quick Start Guide (German)
PDF available
PDF available
PDF available
Firebird 2 Migration & Installation Notes v. 2.0.x and 2.1 PDF available
Firebird 2.1 Language Reference Update PDF available
Firebird 2.0 Language Reference Update PDF available
Firebird 2.0 Error Codes PDF available
Migrating from InterBase 6.01 to Firebird 1.5 and 2.0 (third-party HOWTO)  
Firebird 1.5 Language Reference Update PDF available
Firebird 1.5 Quick Start Guide
Firebird 1.5 Quick Start Guide (Spanish)
Firebird 1.5 Quick Start Guide (French)
Firebird 1.5 Quick Start Guide (Japanese)
Firebird 1.5 Quick Start Guide (Russian)
PDF available
PDF available
PDF available
PDF available
PDF available
Firebird 1.5 Error Codes PDF available
Firebird 1.5 Character Sets & Collations  
Coexistence of Firebird 1.5 and InterBase
Coexistence of Firebird 1.5 and InterBase (Brazilian Portuguese)
Coexistence of Firebird 1.5 and InterBase (Russian)
PDF available
PDF available
PDF available
Firebird 1.0 Quick Start Guide PDF available
InterBase 6.0 Manuals
API Guide ZIP available
Data Definition Guide ZIP available
Developers Guide ZIP available
Embedded SQL Guide ZIP available
Language Reference ZIP available
Operations Guide ZIP available
Full Set, cross-indexed ZIP available
IB 6.0 SQL Reference (not included in full set)  
Manuals for Firebird Docwriters
Intro to Writing Firebird Docs (conference session) PDF available
Firebird Docbuilding Howto
Firebird Docbuilding Howto (Spanish)
Firebird Docbuilding Howto (Italian)
Firebird Docbuilding Howto (Brazilian Portuguese)
PDF available
PDF available
PDF available
PDF available
Firebird Docwriting Guide
Firebird Docwriting Guide (German)
Firebird Docwriting Guide (Italian)
Firebird Docwriting Guide (Brazilian Portuguese)
PDF available
PDF available
PDF available
PDF available
Docwriters' Tools Downloads (.zip files)