Data tools

Base64 Encode/Decode

Convert text/files to Base64 or decode Base64. Supports Data URL splitting and UTF-8 text display. All processing stays in your browser.

URL Encode/Decode

Convert URL encoding/decoding instantly in your browser. Switch between encodeURIComponent/encodeURI behavior, compare + vs %20, and detect possible double encoding.

JSON Formatter

Free JSON pretty/minify tool with line and column error details, key sorting, indent options, and one-click copy. Processing runs fully in your browser.

CSV/TSV Converter

Convert CSV and TSV both ways (comma ↔ tab). A quote-aware CSV parser correctly handles commas and line breaks inside quoted fields, fully in your browser.

CSV Deduplicator

Remove duplicate CSV rows by selected key columns. Supports first-win, last-win, and non-empty merge with summary metrics for removed rows and duplicate groups.

CSV Editor

Preview CSV files in your browser, remove unwanted columns, split or merge columns, and reorder output columns. Files never leave your device, and you can download the edited CSV right away.

CSV to JSON Converter

Convert CSV to JSON by paste or upload. Toggle headers, type inference, and empty-cell handling (""/null/omit). Copy and .json download supported.

YAML ↔ JSON ↔ TOML Converter

Free YAML/JSON/TOML converter. Paste text to convert instantly with formatting, validation, copy, and download support. Everything runs in your browser.

JSON Key Sorter

Sort JSON object keys A-Z, choose all-level or top-level scope, preserve array order, and format indentation in one pass for cleaner reviews.

JSON Compare

Compare two JSON documents semantically in your browser, reduce array noise with match keys and tolerance, and export JSON Patch or JSON Merge Patch without uploading data.

JSON Compare

Compare two JSON documents semantically in your browser, reduce array noise with match keys and tolerance, and export JSON Patch or JSON Merge Patch without uploading data.