Analyze CSV structure — column types, counts, unique values, and empty cells. Everything runs locally in your browser — nothing is uploaded.
Analyze JSON payload size, structure, nesting depth, and key count for optimizing API request and response bodies.
Analyze HTTP request and response headers — detect security headers, review formatting, and inspect value structure. Everything runs locally in your browser — nothing is uploaded.
Clean CSV data by trimming whitespace, removing empty rows, deduplicating, and applying column-aware transforms (email lowercasing, phone digit-stripping, note normalizing). Everything runs locally in your browser — nothing is uploaded.
Bidirectional converter between tab-separated values (TSV) and comma-separated values (CSV) with proper quoting. Everything runs locally in your browser — nothing is uploaded.
Remove duplicate rows from CSV data based on a specific column. Keep only unique values for cleaner datasets.
CSV Analyzer lets you analyze CSV structure — column types, counts, unique values, and empty cells. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Analyze CSV structure — column types, counts, unique values, and empty cells. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Paste or type your content directly into the provided text area.
Yes. After the initial page load, CSV Analyzer runs entirely on your device with no internet connection needed. All processing is done locally.
Tools cover JavaScript, CSS, HTML, SQL, Python, JSON, XML, CSV, and more. Check individual tool descriptions for specifics.
No. All code processing — formatting, minification, conversion, hashing — runs locally in your browser.
Yes. Since processing is local, performance depends on your device. Most operations handle large files without issue.
Yes. SQL uses sql-formatter, JSON uses native JSON.parse, and other formatters follow widely adopted formatting rules.
Yes. All developer tools work fully offline after the initial page load.
Chmod Calculator
Convert between numeric (755) and symbolic (u=rwx,g=rx,o=rx) chmod permission formats. See detailed breakdown for owner, group, and others.
Docker Run to Compose Converter
Convert docker run commands to docker-compose.yml format. Supports ports, volumes, environment variables, networks, restart policies, and container names.
Email Normalizer
Normalize email addresses by removing dots (Gmail), stripping +tags, and lowercasing. Process multiple emails at once for deduplication and cleaning.
Diff Checker
Compares two input texts side-by-side, highlighting inserted, deleted, and changed lines with distinct background colors. Everything runs locally in your browser — nothing is uploaded.
Regex Tester
Provides an interactive environment where users can write a regular expression pattern, test it against sample strings, and view real-time match. Everything runs locally in your browser — nothing is uploaded.
JSON Formatter
Pretty-prints raw JSON with configurable indent width, key sorting, and bracket collapsing options while flagging syntax errors with exact.