Text and file encryption
Encrypt or decrypt text and files locally with a password using authenticated AES-256-GCM encryption.
Free online tools
Images, QR codes, PDF, text and data. Pick a tool and get started.
My quick access
Backup & restoreCompress images to a target sizeImage converterQR code generatorQR code decoderMerge PDFsJSON formatter and validatorRegex testerImage to text OCR
Up to 8 shortcuts. Drag or use arrows to reorder. Save presets in the corresponding tool first.
No tools match the current filters. Try fewer keywords or clear the category and favorites filters.
Popular tools
Document perspective correction
Adjust four corners to straighten a document photo, enhance it and export PNG, JPG or PDF.
List comparison
Find intersections, unions and differences while retaining original text.
Markdown table generator
Paste Excel, CSV or Markdown tables, edit cells and alignment, then export Markdown or CSV.
QR code generator
Create text, URL, email, phone or SMS QR codes and download PNG or SVG.
Excel and CSV diff
Compare two tables by one or more key columns, inspect additions, deletions and changes, and export the differences.
Barcode image decoder
Upload an image to read a common one-dimensional barcode.
PDF to text
Extract PDF text by page range, edit individual pages, copy and export TXT.
Scanned PDF OCR
Recognize scanned PDF pages, retry failures, resume, preserve corrections and export TXT.
PDF image compression
Compress supported JPEG images inside PDFs while keeping text and links, then inspect the size and save a copy.
SQL formatter
Format SQL dialects including MySQL and PostgreSQL, with indentation and keyword case options.
JSON, CSV and Excel converter
Convert JSON object arrays to CSV or XLSX, and spreadsheet rows to JSON.
Split spreadsheets by values or rows
Split by column values or a fixed row count, then download a multi-sheet Excel file or ZIP.
View and remove image metadata
Inspect image metadata and export a copy without the original metadata.
QR code designer
Customize dot and corner styles, colors and a logo, then export PNG or SVG.
Add PDF page numbers
Skip covers, choose page ranges and number templates, preview placement and export a numbered PDF.
Word and character counter
Count words, characters, Chinese characters and lines.
Whitespace cleaner
Clean edge whitespace, tabs and blank lines with a chosen line ending.
URL encoding and query editor
Encode or decode in batches and edit URL query parameters without losing duplicate keys.
Base64 text encoder
Encode UTF-8 text to Base64 or decode it.
Markdown editor
Edit highlighted Markdown, insert formatting, preview side by side and export HTML.
Date calculator
Calculate date differences, weekdays or add and subtract days, weeks, months and years.
JSON and YAML converter
Convert and validate JSON and YAML while preserving large integers and decimal precision.
Password generator
Generate secure passwords in batches, choose character groups, exclude confusing characters and copy or download.
Split and merge columns
Import Excel/CSV, split, combine and reorder columns, then continue to cleanup.
Image converter
Convert images between JPG, PNG and WebP, then download the results.
Batch image workflow
Batch crop or pad images, set exact pixels, convert formats and target a file size.
QR code decoder
Upload or paste an image to read its QR code content.
Contact QR code
Enter contact details, preview a vCard QR code and download PNG or SVG.
Batch QR codes and label printing
Paste or import CSV, generate QR codes and A4 labels, then download a print PDF or ZIP.
Images to PDF
Combine multiple images into a PDF in the chosen order.
Fill and sign PDF
Place text, dates and a handwritten signature on PDF pages, then export a copy.
PDF print layout
Arrange PDF pages on A4, A3 or Letter sheets, adjust order, margins and orientation, then print.
Text case converter
Convert English text to upper case, lower case or title case.
Text diff
Compare texts side by side with word highlights, ignore options and unified patch export.
HTML entity encoder
Encode special characters as HTML entities or decode them.
Multi-rule text and table replacement
Apply ordered replacements, regex rules or masking to text and table columns, with change previews and saved rules.
JSON diff
Compare JSON precisely, match array keys, ignore paths and export complete reports.
Regex tester
Highlight matches, preview replacements, save reusable rules and verify expressions with positive and negative tests.
SHA-256 hash
Calculate SHA-256 digests for text or files.
Batch file renamer
Use text replacement, prefixes and custom numbering; preview conflicts and download a ZIP.
Merge and match spreadsheets
Append by headers or match composite keys with left, inner or full joins; export unmatched rows.
Compress images to a target size
Compress images to 100 KB, 200 KB, 500 KB or a custom size, individually or in batches.
Batch image resizer
Resize with high-quality resampling, aspect ratio controls, pixels or percentages.
Replace transparent background
Fill transparent areas with white or a color you choose.
Favicon generator
Create website icons in multiple sizes from an image.
Image stitcher
Create equal-width long images, horizontal stitches and grids, then export PNG/JPG.
Image to text OCR
Extract text from multiple images, reorder and review results, then export combined or separate text.
Image Base64 converter
Convert images to Base64 or data URLs, decode, preview and download original bytes or snippets.
ID photo sizing and print layout
Crop photos to millimeter dimensions, export sized images and arrange a print PDF.
JSON formatter and validator
Format, validate, extract paths, unescape strings and convert JSONL while preserving number literals.
UUID generator
Generate one or many UUIDs locally in your browser.
Cron expression and run times
Explain cron schedules and preview upcoming runs in a chosen time zone with local presets.
Color format converter
Convert colors between HEX, RGB and HSL formats.
Color contrast checker
Measure contrast between text and background colors.
Filter, sort and summarize tables
Filter by multiple conditions, sort columns, group and summarize, then export results.
Table field standardizer
Standardize dates, amounts, IDs, mappings and empty cells by column, with change previews and error reports.
Expand image canvas
Add padding or a colored border around an image.
Wi-Fi QR code
Create Wi-Fi QR codes with size and error correction controls, in PNG or SVG.
Batch barcodes & label printing
Generate Code 128/39/93, EAN, UPC, ITF and Codabar, then export images or label PDFs in batches.
Visual PDF page organizer
Drag page thumbnails, rotate or delete selections, undo edits and move pages to a position.
View and edit PDF metadata
Inspect and edit a PDF title, author and other metadata.
Text deduplication and frequency
Keep first or last occurrences, inspect frequencies, sort and export.
CSV and TSV converter
Preview tabular data and convert between CSV and TSV.
Timestamp and time zone converter
Convert timestamps from seconds to nanoseconds in batches with multiple time zones and DST handling.
JWT viewer
Inspect a JWT header and payload locally without verifying its signature.
CSV and TSV to XLSX
Choose text encoding and delimiter, preview and export text-preserving Excel files.
Remove duplicate table rows
Clean Excel/CSV data, keep first or last duplicates, and export removed records.
ZIP compressor and extractor
Create or extract ZIP archives locally in your browser.
Image cropper
Drag, zoom and rotate an image, then crop to a preset or custom aspect ratio.
Image watermark
Preview text or logo watermarks, adjust placement and tiling, and download a batch.
QR camera scanner
Scan QR codes with your camera or use an uploaded image.
Split and extract PDF pages
Split a PDF or extract selected page ranges.
PDF to images
Render PDF pages as downloadable images.
Add PDF watermark
Preview text or logo watermarks, choose placement, tiling and page ranges, then export.
XLSX to CSV and TSV
Choose a sheet, delimiter and formula protection, preview and export or continue to cleanup.
Image editor and solid covers
Add text, arrows and opaque covers, adjust colors, then preview and export a new image.
Merge PDFs
Combine several PDF files into one document.
HEIC to JPG and PNG
Convert primary HEIC or HEIF images, adjust quality and dimensions, then download individually or as ZIP.
SVG to PNG and JPG
Upload or paste SVG, set output dimensions and background, then preview and download PNG or JPG.