Which Redis data types are decoded by this tool?

It unpacks strings (int8/16/32, LZF), lists, sets, sorted sets, hashes, zipmaps, ziplists, intsets, quicklist v1/v2, and listpack encodings. Module and stream types are flagged without deep expansion.

How does format auto-detection work?

It matches byte signatures against known headers, such as 'REDIS' for RDB snapshots, 0x80/0x81 for Memcached binary frames, SSTable footer magic values, or BoltDB meta magic.

What is the purpose of the Reference Time parameter?

It acts as the evaluation baseline to calculate whether millisecond and second TTLs in snapshots are active, expired, or drifted relative to that specific epoch timestamp.

Can this tool parse SSTable index structures?

Yes, it parses 48-byte legacy footers, metaindex/index BlockHandles, restart points, and block-level prefix compression for LevelDB and RocksDB.

Does it support differential analysis between two files?

Yes, pasting a second RDB dump into Snapshot B produces a keyspace comparison listing added, deleted, modified, and TTL-shifted keys.

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Converter

RDB SSTable LevelDB RocksDB Memcached Binary KV-Store Encoding Lineage

Decode binary key-value store artifacts byte by byte: Redis RDB snapshots, LevelDB/RocksDB WAL records and SSTable footers, Memcached binary packets, BoltDB and LMDB page headers — with keyspace hex-diff and TTL expiry matrix.

Details

What this tool helps you do

A forensic decoder for the binary encodings of the KV-store family.

Supported artifacts and what gets expanded:

· Redis RDB — "REDIS" magic + ASCII version, AUX fields (opcode 0xFA), SELECTDB (0xFE), RESIZEDB (0xFB), expiry opcodes FD/FC, every value type from plain strings (int8/16/32 and LZF-compressed) through list, set, zset (ASCII and binary-double scores), hash, zipmap, ziplist, intset, quicklist v1 and v2, listpack hash/zset/set (types 16/17/18/20), and the CRC-64 Jones trailer (verified).
· LevelDB / RocksDB write-ahead log — 32 KiB blocks, 7-byte record headers (masked CRC32C, u16 length, FULL/FIRST/MIDDLE/LAST types), zero trailers.
· LevelDB / RocksDB SSTable — 48-byte legacy footer (varint64 metaindex + index BlockHandles padded to 40 bytes + little-endian magic 0xdb4775248b80fb57 / 0x88e241b785f4cff7), data-block prefix compression with restart points.
· Memcached binary protocol — 24-byte header (magic 0x80/0x81, opcode, key/extras/value split, vbucket or status, opaque, CAS), per-opcode extras such as flags + expiry.
· BoltDB — 16-byte page header and meta page magic 0xed0cdaed. LMDB — MDB_page header flags (the format famously has no magic number).

Paste a second RDB snapshot to get a keyspace diff (added / removed / value-changed / TTL-drifted keys) and a TTL expiry matrix evaluated against your chosen reference time.

The RDB path is verified against real redis-server 7.2.4 dumps; module and stream value types (6/7/15/19/21) are reported but not expanded.

Execution

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Samples

RDB SSTable LevelDB RocksDB Memcached Binary KV-Store Encoding Lineage

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Key facts

Overview

When to use

How it works

Use cases

Examples

1. Redis 7.2 RDB Keyspace Diff & Expiry Inspection

2. Memcached Binary Packet Troubleshooting

FAQ

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