Hex Editor

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

Save selection

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