Format-to-format tools for clean handoffs.

CSV → JSONTurn CSV rows into JSON records locally in the browser.
JSON → CSVConvert JSON arrays into CSV for spreadsheets and tools.
CSV → ParquetExport CSV data into columnar Parquet files.
Parquet → CSVFlatten Parquet datasets back into shareable CSV files.
JSON → ParquetTransform structured JSON data into Parquet.
Parquet → JSONInspect Parquet as JSON without leaving the browser.
CSV → Markdown TableGenerate markdown tables from CSV instantly.

Viewers & compare

Inspect, search, and spot differences locally.

뷰어Open large CSV files in a fast local-first data grid.
비교하다Review two CSV files side by side without uploads.
엑셀 뷰어Inspect old Excel files directly in the browser.
Parquet 뷰어Preview Parquet columns and rows with grid controls.

Excel workflows

Move between CSV/Excel/JSON while staying in-browser.

CSV → 엑셀Convert CSV into Excel-ready files for office workflows.
엑셀 → CSVExtract CSV from legacy Excel spreadsheets.
JSON → 엑셀Create Excel output from structured JSON data.

Learn & product

Docs, hubs, and key pages.

가이드Read practical guides for CSV cleanup and conversion.
도구Browse the full tool library by workflow and category.
블로그Explore articles about file workflows and privacy.
개인정보See how local-first processing protects your data.
이용약관Review terms for the product and website.

Color tools, generators, and gallery-style inspiration.

Color palette generatorBuild palettes and explore combinations for brand work.
Gradient generatorCreate bold gradients for interfaces and assets.
Trending palettesBrowse popular palette collections and ideas.
Trending gradientsScan standout gradients curated from the gallery.

Local-first converters, viewers, and file tools

Local-first tools

Table tool directory

Convert, compare, and review tabular files in your browser. Use the categories below to find the right workflow fast—without uploading sensitive data to unknown servers.

Converters

CSV → JSON
JSON → CSV
CSV → Parquet
Parquet → CSV
JSON → Parquet
Parquet → JSON
CSV → Markdown Table

Viewers & compare

뷰어
비교하다
엑셀 뷰어
Parquet 뷰어

Excel workflows

CSV → 엑셀
엑셀 → CSV
JSON → 엑셀

Learn & product

가이드
도구
블로그
개인정보
이용약관

Color

Color palette generator
Gradient generator
Trending palettes
Trending gradients

Table

파일은 이 기기에서만 처리되며 서버로 보내지 않습니다. 편집 내용은 브라우저 로컬 저장소에 저장됩니다. 지우면 이 기기에서 삭제됩니다. 개인정보 이용약관

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JSON을 Excel로 변환기

JSON 파일을 가져옵니다(최대 200MB, 최대 50,000행 로드).

행당 하나의 개체와 일관된 키가 있는 JSON 개체 배열을 사용합니다.

JSON

데이터는 JSON 개체 배열로 유지되어야 합니다.

시사

이 미리보기에는 Excel로 내보낼 행이 표시됩니다.