Free online tools
AvailableBrowser tools for data, text and files.
View all toolsTOOLS FOR REAL WORKPractical tools and software
Practical tools and software
for work and business.
Start with free online tools.
Desktop software and business systems are in development.
Bring your data into orderValid JSON
{
"name": "The49",
"tools": [
"JSON",
"CSV"
],
"free": true
}MADE FOR EVERYDAY TASKSYour files,
Your files,
stay with you.
Processed locally in your browser
Inputs are never uploaded
Ready when you are
Free · No sign-up
Your content stays local
Inputs are never uploaded
In your language
中文 / English / Español
Our products
Desktop software
In developmentDesktop software for work and business. Release details to be confirmed.
Business software systems
In developmentSoftware systems for business workflows. Release details to be confirmed.
THE49 TOOLS
Start with a useful tool
Basic features are free. No account needed; inputs stay in your browser.
Universal formats
12 tools available
Data conversion
CSV deduplicator
Remove duplicate rows, keep their first occurrence and export CSV.
Processed locally in your browser
Developer
JSON formatter
Validate, format or minify JSON; copy or download the result.
Processed locally in your browser
Text
Text statistics
Count Unicode characters, Han characters, words and lines.
Processed locally in your browser
Developer
URL encoder / decoder
Encode or decode UTF-8 URL parameters, including Unicode and special characters.
Processed locally in your browser
Data conversion
CSV ↔ JSON
Convert CSV and JSON in your browser, preserving strings and checking table structure.
Processed locally in your browser
Text
Text comparison
Compare two texts by lines or characters, highlight differences and export results.
Processed locally in your browser
Developer
Static QR code
Generate a static QR code from a URL or text, preview it and download PNG or SVG.
Processed locally in your browser
Data conversion
CSV comparison by key
Compare two CSVs by ID or SKU and download added, removed and changed records.
Processed locally in your browser
PDF
PDF tool collection
Merge, extract or split pages, rotate PDFs, convert images to PDF and PDF to PNG.
Processed locally in your browser
Developer
SQL formatter
Format SQL in your browser with dialect, indentation and keyword case options.
Processed locally in your browser
Text
Translation quote brief
Organize translation requirements into a brief you can copy, download or print. No login; processed in your browser.
Processed locally in your browser
Image
Image tool collection
Batch compress, convert, resize and center-crop images. Try a target file size, with a warning if it cannot be reached. English interface.
Processed locally in your browser
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