Download Link Converter

Three legacy link formats from one address

This converter takes one text value, trims whitespace from its beginning and end, and immediately produces three strings: a Thunder (thunder://) form, a QQ Xuanfeng (qqdl://) form, and a FlashGet (flashget://) form. The same cleaned input is used for all three. The tool does not offer a format selector.

Base64 converts bytes into a text alphabet, with padding such as = where needed. It is reversible encoding, not encryption. These wrappers are legacy conventions used by some receiving software; the generated text alone does not establish that a particular app or operating system will accept it.

What the encoded text represents

The prefixes identify different URI schemes, while each payload follows its own wrapper convention. For example, Thunder adds AA before and ZZ after the input before encoding. QQDL encodes the input without those markers. FlashGet surrounds the input with [FLASHGET] markers and appends the literal suffix &1926 after the encoded payload.

For https://example.com/file.zip, the outputs are:

thunder://QUFodHRwczovL2V4YW1wbGUuY29tL2ZpbGUuemlwWlo=
qqdl://aHR0cHM6Ly9leGFtcGxlLmNvbS9maWxlLnppcA==
flashget://W0ZMQVNIR0VUXWh0dHBzOi8vZXhhbXBsZS5jb20vZmlsZS56aXBbRkxBU0hHRVRd&1926

Generate and copy a format

1. Enter one source string

   Paste the complete address or text you want wrapped. For a normal download address, retain its scheme, path, query string, and any other characters that belong to it. The converter does not check that the text is a valid or reachable URL.

2. Review the three live results

   As soon as the input is nonempty, the Thunder, QQ, and FlashGet results appear. Editing the source updates all three. Leading and trailing whitespace is removed before the results are made.

3. Copy the requested result

   Use the copy control beside the format required by the receiving workflow. Copy the whole displayed string, including its scheme prefix and any suffix. Clear the input before handling a separate address.

Check the sample by decoding

Removing the prefix and decoding the sample payloads yields AAhttps://example.com/file.zipZZ, https://example.com/file.zip, and [FLASHGET]https://example.com/file.zip[FLASHGET]. This is a useful way to check which wrapper was applied; it does not test whether the receiving client can download the resource.

Common questions about the generated strings

Limits and safe handling

• One string at a time: The input is not split into a batch. Newlines or other characters pasted into it become part of the string being encoded.
• No URL validation: Any nonempty text produces outputs. The converter does not add a missing http:// or https://, repair escaping, or check whether the address is direct.
• No download or compatibility test: A generated wrapper does not change access permissions, server behavior, or the destination file. It also does not establish that a client supports the format.
• Encoding is not protection: Anyone who can decode Base64 can read the original text. Avoid putting passwords, access tokens, private file locations, or other sensitive values into a link for the purpose of concealing them. Copied output may remain in the device clipboard.