OPMLコンバーター
OPMLファイル（RSS/Atom/ポッドキャスト購読エクスポート）をネストされたJSON、フラットなJSONフィード一覧、Markdownの箇条書きリスト、またはプレーンテキストフィードリストに変換します—フォルダカテゴリが保持されます。ブラウザ内で完全に実行されます。
入力
オプション
出力
このツールを使う他の方法
REST API
curl -X POST https://api.iotools.cloud/v1/tool/opml-converter \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"opmlSource": "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<opml ver…",
"outputFormat": "json-nested",
"indent": "2"
}'ご自身のアカウントのキーに差し替えてください。ツールのフィールドがそのままリクエストボディになります——ラッパーはありません。
AIエージェントに依頼する
Use the IOTools `opml-converter` tool (OPML Converter) on this input:
YOUR_INPUT_HEREIOTools MCPサーバーに接続された任意のエージェントにこれを貼り付け、入力内容を追加してください。
埋め込みウィジェット
<iframe
src="https://iotools.cloud/embed/opml-converter/"
width="100%" height="520" frameborder="0" scrolling="no" loading="lazy"
title="OPMLコンバーター — iotools.cloud"
sandbox="allow-scripts allow-forms allow-same-origin allow-downloads allow-popups allow-popups-to-escape-sandbox"
allow="clipboard-write"
style="width:100%;border:1px solid #e5e7eb;border-radius:12px;overflow:hidden"></iframe>
<script src="https://iotools.cloud/embed.js" async></script>ご自身のページに貼り付けるだけ——無料、キー不要、リンクを掲載するだけです。
| API/MCP 1回あたりの費用 | 5クレジットから |
|---|---|
| クレジットが足りませんか? | 料金を見る |
次の方法でも利用可能
ガイド
Paste or upload an OPML file — the format podcast apps and RSS readers export your subscriptions to — and instantly turn it into nested JSON, a flat JSON feed list, a Markdown bullet list, or a plain text feed list. Folder categories (the way most readers group feeds) are preserved in every format. Everything runs in your browser — nothing is uploaded.
How to use it
- Paste your OPML XML into the input box, or upload an
.opml/.xmlfile. - Pick an Output format:
- Nested JSON keeps the exact folder structure, with
childrenarrays for subfolders. - Flat JSON lists every feed as one array, each entry carrying a
categoryfield with its folder breadcrumb (e.g."News > Tech"). - Markdown list renders the same tree as nested bullet points — folders in bold, feeds as clickable links — ready to paste into a wiki or note.
- Plain text list is a flat, one-line-per-feed list (
[Category] Title — URL) for quick scanning or piping into another tool.
- Nested JSON keeps the exact folder structure, with
- Copy or download the result.
What's in an OPML file?
OPML (Outline Processor Markup Language) is an XML format built around nested <outline> elements. A podcast/RSS export nests feed outlines (carrying title, type, xmlUrl and htmlUrl) inside folder outlines (which have no xmlUrl of their own) — this tool reads that structure directly, so category folders of any depth are handled correctly.
Does it show the feed type (RSS, Atom, podcast)?
Yes — each feed's type attribute (as written in the file, usually rss) is included in both JSON formats, so you can filter or group by it downstream.
Is my data private?
Completely. Parsing runs entirely in your browser using a self-contained XML tokenizer — your OPML file is never sent to a server, logged, or stored.
Can I go the other way and parse a live feed instead of an export?
Yes — use the RSS Feed Parser to fetch and read an actual RSS/Atom feed by URL, or the RSS/Atom Feed Generator to build a feed from scratch. For converting other kinds of XML, see the XML to JSON Converter.