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Choose a tool and process your files locally.
CSV Duplicate Remover
Remove repeated rows while preserving order.
CSV → CSVCSV File Merger
Combine CSV files with identical headers.
CSV files → CSVCSV File Splitter
Split rows into smaller files with headers.
CSV → CSV filesCSV Column Extractor
Select columns by their one-based positions.
CSV → CSVCSV to JSON Converter
Convert header-based rows into JSON objects.
CSV → JSONJSON to CSV Converter
Convert an array of flat objects into a table.
JSON → CSVText File Comparison
Compare two files line by line with context.
Two text files → TXT reportBulk Image Compressor
Re-encode images with adjustable quality.
JPG / PNG / WebP → JPG / WebPBulk Image Watermark
Add a visible text watermark to your images.
Images → JPG / PNG / WebPImage Format Converter
Convert images with native browser encoding.
JPG / PNG / WebP → JPG / PNG / WebPImage Cropper
Crop a precise rectangle in image pixels.
Image → JPG / PNG / WebPBulk Image Resizer
Fit images inside your chosen dimensions.
Images → JPG / PNG / WebPQR Code Generator
Short ASCII text and links → QR PNG
Runs locally in your browserPassword Generator
Cryptographic browser randomness
Runs locally in your browserJPG to PDF Converter
JPEG photographs → ordered PDF
Runs locally in your browserWord & Character Counter
Unicode-aware text counts
Runs locally in your browserJSON Formatter & Validator
Preserves numeric token spelling
Runs locally in your browserImage to PDF Converter
PNG / WebP / JPEG → PDF
Runs locally in your browserRemove Duplicate Lines
Keep first occurrences in order
Runs locally in your browserProfile Picture Maker
Create circular or square profile photos with borders
Runs locally in your browserPhoto Collage Maker
Arrange 2–9 photos with adjustable layouts, spacing and backgrounds, then download a full-size PNG or JPEG.
Browser only · Originals unchangedBase64 Encoder & Decoder
Encode UTF-8 text or files, or decode strict Base64 and Base64url into safe local downloads.
Browser only · Originals unchangedBulk File Renamer
Preview renamed copies, detect unsafe names and collisions, and download original file bytes in a local ZIP.
Browser only · Originals unchangedFile Checksum Calculator — SHA-256
Calculate a complete local file SHA-256 hash and compare it with an expected checksum.
Browser only · Originals unchangedCSV/TSV Spreadsheet Cleaner
Normalize cell whitespace, remove blank records and convert CSV or TSV delimiters.
Free · Runs locally in your browserCSV Dataset Profiler
Find missing values, distinct counts, inferred types and numeric statistics in a CSV dataset.
Free · Runs locally in your browserCSV Column Mapper
Rename CSV headers and replace exact cell values with an explicit mapping.
Free · Runs locally in your browserCSV Data Validator
Check field rules and download record-level CSV and JSON validation reports.
Free · Runs locally in your browserCSV to SQL INSERT Generator
Generate SQLite INSERT statements with quoted identifiers and escaped text values.
Free · Runs locally in your browserFile Inventory & Storage Report
Summarize selected files by extension and size and download a storage manifest.
Free · Runs locally in your browserFile Byte Inspector
Inspect a bounded hexadecimal file preview with byte offsets and common signature hints.
Free · Runs locally in your browserBatch File Extension Renamer
Replace file extensions with collision checks and download copies with unchanged contents.
Free · Runs locally in your browserJSON Structure Analyzer
Explore JSON Pointer paths, types, nesting depth and structural statistics.
Free · Runs locally in your browserText Data Extractor
Extract email-like text, HTTP links or literal delimited fields into local JSON and CSV.
Free · Runs locally in your browserImage Background Color Replacer
Replace a selected image color using a configurable RGB tolerance and export PNG.
Free · Runs locally in your browserImage Color Palette Analyzer
Find dominant color bins and download an alpha-weighted image palette.
Free · Runs locally in your browser