---
title: "Encode and decode text in Base64, Base64URL, Base32, Base58, Base85 and hex."
method: POST
path: "/api/v1/base64"
tags: ["Encoders & Decoders"]
---

# Encode and decode text in Base64, Base64URL, Base32, Base58, Base85 and hex.

`POST /api/v1/base64`

## Request

- Base URL: `https://programmes.net`
- URL: `https://programmes.net/api/v1/base64`
- Auth: none declared

Base64 Encoder & Decoder. Operations: `encode` — Encode text into the chosen format. `decode` — Decode text from the chosen format back to plain text.

## Request body

- union
  - Base64Encode: Encode text into the chosen format.
    - `operation` 'encode', required
    - `input` string: The plain text to encode.
    - `options` object
      - `format` 'base64' | 'base64url' | 'base32' | 'base58' | 'base85' | 'hex': Target encoding format.
  - Base64Decode: Decode text from the chosen format back to plain text.
    - `operation` 'decode', required
    - `input` string: The encoded text to decode.
    - `options` object
      - `format` 'base64' | 'base64url' | 'base32' | 'base58' | 'base85' | 'hex': Source encoding format.

## Response `200`

The operation ran.

- object
  - `ok` unknown, required
  - `tool` 'base64', required
  - `operation` 'encode' | 'decode', required
  - `result` unknown, required

## Other responses

- `400`: The request is not valid (https://programmes.net/api#invalid-request); The tool has no such operation (https://programmes.net/api#unknown-operation)
- `404`: No such tool (https://programmes.net/api#unknown-tool)
- `413`: The request or its input is too large (https://programmes.net/api#content-too-large)
- `415`: The body must be JSON (https://programmes.net/api#unsupported-media-type)
- `422`: An option is missing, of the wrong type or out of range (https://programmes.net/api#invalid-options); This call needs more CPU than one API call may use (https://programmes.net/api#refused); The operation could not process the input (https://programmes.net/api#tool-error)
- `429`: Too many requests (https://programmes.net/api#rate-limited)
- `500`: Internal error (https://programmes.net/api#internal-error)

---

[API](https://skmtc.dev/programmes/apis/programmes-net-api.md) · [All operations](https://skmtc.dev/programmes/apis/programmes-net-api/llms.txt) · [OpenAPI document](https://skmtc.dev/programmes/apis/programmes-net-api/revisions/aa939784a2e6?raw)