Synalyze It! allows editing of files of any size without delay. Even copying of data of any size via clipboard is possible.
When you insert a string from the clipboard, the selected encoding is applied, of course. This enables you to convert text from one encoding to another easily.
Some features are only available in the Pro version.
Checksum calculation (only Pro version)
Compute various checksums for the selected bytes
Binary File Comparison (only Pro version)
Compare binary files byte-by-byte or with an intelligent comparison algorithm
GraphViz export (only Pro version)
Visualize your grammars by exporting to .dot (GrapzViz) files
Data View (only Pro version)
Display the selection in different number and color representations
Print the hex view with or without text and mapped structures
Selected bytes can be written to disk directly
Go to position
Directly jump to a specific file offset (decimal or hex)
Go to position in Toolbar (only Pro version)
Jump to positions entering expressions
Let Synalyze It! count the occurence of each byte in a file.
Compare code pages
Check the text encoding (ASCII/EBCDIC) of some hex values
Incremental text search with encoding selection
Search text incrementally using one of dozens of code pages
Find numbers 8-64 Bit, signed/unsigned, little/big endian
Find a number in a file instantly and jump directly to the findings
Find byte sequence matching a mask
Find all places in a file that match a certain bit mask
See all strings with a certain encoding
Find all strings in a file like with the Unix strings command
Extend grammars with scripts (only Pro version)
Write Python or Lua scripts where the "static" grammar is not enough
Use powerful expressions in the grammar
Structure and element sizes as well as repeat counts can contain complex formulas