JSON Path Extractor
Extract nested values using dot paths, indexes, and wildcards
Examples: users.*.email or orders[0].total
JSON Path Extractor — what it does
Pull values out of nested JSON with a dot path, array indexes and wildcards — users.*.email to collect every address, or orders[0].total for one specific value. It is a query language small enough to type from memory, against a document you have in the clipboard.
When this tool helps
- Collecting one field from every item in an API response, such as all IDs or all emails.
- Reaching a single deeply buried value without scrolling through the whole document.
- Checking whether a field exists across every record in a payload.
How to use it
- Paste the JSON document.
- Enter a path such as users.*.email or orders[0].total.
- Process the extraction.
- Copy the extracted values.
Accuracy, limits, and good practice
- The wildcard collects across every element at that level, which is how you turn an array of objects into a plain list of one field.
- Array indexes start at zero, so orders[0] is the first order — the classic off-by-one when translating from a spreadsheet mindset.
- An empty result usually means a mistyped path segment; check the exact key spelling against the formatted document.
Frequently asked questions
How do I get every value at one level?
Use the wildcard: items.*.price returns the price from every item in the array.
Is this the same as JSONPath?
It is a simplified form of the same idea, covering dot paths, indexes and wildcards without the full specification's filter syntax.
How do I filter rather than extract?
The JSON array filter selects whole items by a condition; this tool pulls values out once you know which items you want.
Related tools on this site
- JSON Difference Viewer — Compare two JSON documents and list added, removed, and changed values
- CSV Date Normalizer — Convert one CSV date column to a consistent format
- CSV to Excel — Convert CSV data into a standard XLSX workbook
Everything above runs inside this page. JSON Path Extractor needs no account, no upload, and no server round trip — close the tab and nothing is left behind.
JSON 路徑提取能做什麼
用點路徑、陣列索引與萬用字元從巢狀 JSON 取值——users.*.email 收集所有信箱，orders[0].total 取單一數值。它是一種小到可以憑記憶打出來的查詢語法，對象就是你剪貼簿裡那份文件。
什麼時候用得上
- 從 API 回應的每個項目中收集同一個欄位，例如所有 ID 或所有信箱。
- 不必捲完整份文件，直接取到深埋的某個值。
- 檢查載荷中每筆紀錄是否都有某個欄位。
使用步驟
- 貼上 JSON 文件。
- 輸入路徑，例如 users.*.email 或 orders[0].total。
- 執行提取。
- 複製取得的值。
精確度、限制與實務建議
- 萬用字元會橫跨該層的每個元素，這正是把物件陣列變成單一欄位清單的方法。
- 陣列索引從 0 開始，orders[0] 是第一筆訂單——從試算表思維切換過來時最常見的差一錯誤。
- 結果為空通常代表路徑某一段打錯字；請對照格式化後的文件確認鍵名拼寫。
常見問題
怎麼取某一層的全部值？
用萬用字元：items.*.price 會回傳陣列中每個項目的價格。
這跟 JSONPath 一樣嗎？
是同一概念的簡化版，涵蓋點路徑、索引與萬用字元，不含完整規格的篩選語法。
我要篩選而不是取值怎麼辦？
JSON 陣列篩選器可依條件挑出整個項目；本工具則是在你知道要哪些項目後負責取值。
本站相關工具
- JSON 差異檢視器 — 比較兩份 JSON 並列出新增、移除與修改內容
- CSV 日期格式統一 — 將指定日期欄位轉換成一致格式
- CSV 轉 Excel — 將 CSV 資料轉換為標準 XLSX 活頁簿
以上步驟全部在這個頁面內完成，JSON 路徑提取 不需要註冊、不上傳檔案、也不經過伺服器，關閉分頁後不會留下任何資料。