Base-N Encoder — Base16, Base32, ASCII85, Base91 Online
Encode and decode Base16, Base32 (RFC 4648), Base32 Crockford, Base85 (ASCII85), and Base91 in your browser.
Cách dùng
- 1 Pick a base — Base16, Base32, Base32 Crockford, Base85, or Base91.
- 2 Toggle Encode or Decode.
- 3 Paste input — UTF-8 text on encode, encoded string on decode.
- 4 Copy the output. Use Swap to flip input ↔ output instantly.
Vì sao dùng công cụ này
- Five bases in one tool — no need to find a separate page per encoding.
- Crockford Base32 — human-friendly, no I/L/O/U, case-insensitive on decode.
- Base85 — denser than Base64, used by Adobe PDF and Git.
- Base91 — denser still, useful for QR/print data limits.
- Pure client-side. No upload.
Câu hỏi thường gặp
Which Base32 variant is here?
Both. RFC 4648 (alphabet A-Z, 2-7, padded with =) for compatibility with OTPAUTH URIs and similar. Crockford Base32 (alphabet 0-9, A-Z minus I/L/O/U) for human-readable identifiers — case-insensitive and tolerant of O→0, I/L→1.
What about URL-safe Base64?
Use our dedicated Base64 Encoder & Decoder — it has a URL-safe variant toggle and supports file → Base64 mode.
Why does Base85 wrap with <~ and ~>?
Adobe ASCII85 specifies those delimiters. They are optional on decode — we strip them if present.
Why is Base91 not standardized?
It is Joachim Henke's 2000 design. Not an IETF standard, but the algorithm and alphabet are stable and widely implemented when extra density is required.
Base-N Encoder & Decoder là gì?
A Base-N Encoder & Decoder is a tool that converts data between raw input and several base encodings, including Base16, Base32 (RFC 4648), Base32 Crockford, Base85 (ASCII85), and Base91. It encodes input into the chosen alphabet and reverses the process to recover the original bytes. All encoding and decoding runs client-side in the browser, so data is never uploaded to a server.
Base-N Encoder & Decoder là công cụ lập trình miễn phí của Zerethon Tools. Encode and decode Base16, Base32 (RFC 4648), Base32 Crockford, Base85 (ASCII85), and Base91 in your browser. Chạy hoàn toàn trong trình duyệt — không đăng ký, không tải lên.
- Danh mục
- Lập trình
- Giá
- Miễn phí
- Quyền riêng tư
- Chạy trên trình duyệt
- Đăng ký
- Không cần
Quyền riêng tư
Dữ liệu của bạn không bao giờ rời khỏi trình duyệt trừ khi được nêu rõ. Base-N Encoder & Decoder chạy hoàn toàn phía client — không tải lên máy chủ, không ghi log, không theo dõi dữ liệu bạn nhập.
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