编码 / 解码工具

Base64

Encode / decode binary ↔ ASCII text

Input

Output

JSON

Pretty-print or minify JSON

Input

Output

Base64 ↔ JSON

For callback payload params

将 Base64 编码的 JSON（例如回调参数 payload ）解码，或将 JSON 编码为 Base64。

Input

Output

Unix Timestamp ↔ DateTime

Convert epoch ↔ human-readable date

Timestamp (seconds or ms) or DateTime string

Result

Cryptography

AES · RSA · HMAC · SHA digests

Operation:

Scheme

APP_KEY

Plaintext or Encrypted Value

Result

Regex Tester

Test patterns with named groups & match details

Pattern

Flags

Test String

Matches

Password Generator

Cryptographically random passwords

Length

A–Z uppercasea–z lowercase0–9 digits!@# symbols

Strong

Result

String Comparison

Highlight character, word, or line differences between two strings

Compare two strings side‑by‑side. Choose the comparison mode (characters, words, or lines) to highlight insertions and deletions.

Compare by:

String A

String B