Data tools

Base64 encoder/decoder

Convert text and files to Base64 or decode Base64. Split Data URLs, inspect MIME types, and view text as UTF-8 while processing stays in your browser.

URL encode/decode

Encode or decode URL text in your browser. Compare + with %20, choose encodeURIComponent or encodeURI behavior, and detect possible double encoding.

JSON formatter

Format or minify JSON for free with line-and-column error details, key sorting, indentation choices, and one-click copy. Everything runs in your browser.

CSV/TSV converter

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

CSV deduplicator

Remove duplicate CSV rows by selected key columns. Keep the first or last row, merge non-empty values, and review counts for removed rows and duplicate groups.

CSV Editor

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

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

Convert YAML, JSON, and TOML for free with formatting, validation, copy, and download support. Paste text and keep the entire workflow in your browser.

JSON key sorter

Sort JSON object keys from A to Z or Z to A, choose every level or top level only, preserve array order, and format indentation in one pass for clearer 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 diff viewer

View differences between two JSON documents in your browser and inspect changed paths without server upload.