File tools that keep your files yours
Convert a file without uploading it. Turn CSV into JSON, JSON into readable HTML, Excel or CSV, XML into JSON or CSV, or a spreadsheet into CSV. The tools run in your browser, and the code is open for anyone to inspect and improve.
Choose a tool
| Tool | Takes | Gives you | Good for |
|---|---|---|---|
| Compress PDF | Smaller PDF | Reducing PDF size with a measured result | |
| Compress PDF to 100KB | PDF aiming for 100KB | Checking a 100KB upload limit | |
| Compress PDF to 200KB | PDF aiming for 200KB | Checking a 200KB upload limit | |
| Compress PDF to 500KB | PDF aiming for 500KB | Checking a 500KB upload limit | |
| Image resizer and compressor | JPG, PNG, WebP | Resized or compressed image, or ZIP | Resizing or compressing photos by pixels, cm or KB, including batches |
| WebP converter | WebP, ZIP of WebP | PNG, JPG, GIF or SVG | Converting WebP images one at a time or in bulk |
| WebP to PNG | WebP, ZIP of WebP | PNG images or ZIP | Opening WebP images in apps that don’t support them |
| WebP to JPG (JPEG) | WebP, ZIP of WebP | JPG images or ZIP | Uploading WebP images to forms that ask for JPG |
| WebP to GIF | WebP, ZIP of WebP | Animated GIF | Sharing animated WebP stickers where WebP doesn’t play |
| WebP to SVG | WebP, ZIP of WebP | SVG vector paths | Turning WebP logos and icons into vector shapes |
| AVIF to JPG (JPEG) | AVIF | JPG | Uploading AVIF images to forms that ask for JPG |
| AVIF to PNG | AVIF | PNG | Opening AVIF images in apps that don’t support them |
| AVIF to WebP | AVIF | WebP | Sites and apps that ask for WebP |
| JFIF to JPG (JPEG) | JFIF, JPG, JPEG | JPG | Rename JPEG files without quality loss |
| JFIF to PNG | JFIF, JPG, JPEG | PNG | Editing JFIF photos in apps that ask for PNG |
| JFIF to PDF | JFIF, JPG, JPEG | PDF, one image per page | Scanned pages, receipts and photos of documents |
| Merge JPG | JPG, JPEG, PNG, WebP | One JPG or PDF | Long screenshots, collages and before-and-after pictures |
| Merge JPG to PDF | JPG, JPEG, PNG, WebP | PDF, one image per page | Scanned pages, receipts and photos of documents |
| Video to GIF | MP4, MOV, WebM | Animated GIF | Reactions, short loops and how-to clips from a video |
| Compress JPG to 100KB | JPG photo | JPG at or under 100KB | Meeting a 100KB JPG upload limit |
| Compress JPG to 50KB | JPG photo | JPG at or under 50KB | Meeting a 50KB JPG upload limit |
| QR code scanner | Camera, image or screenshot | QR link or text | Reading a QR code privately, without installing an app |
| CSV to JSON | CSV text, .csv, .tsv | JSON array or JSON Lines | Turning table rows into API or data pipeline records |
| CSV viewer | CSV text, .csv, .tsv | Searchable table, CSV, JSON | Opening, filtering, editing and checking CSV rows locally |
| HAR analyzer | HAR file | Request list | Finding failed and slow requests in a browser recording |
| JSON beautifier | JSON text, .json | Formatted JSON | Reading, validating and sharing JSON with consistent indentation |
| JSON to HTML | JSON text, .json | HTML table or list | Turning API responses and exports into readable HTML |
| JSON to Excel | JSON text, .json, .jsonl | .xlsx workbook | Opening API responses and exports in Excel to sort, filter and sum |
| JSON to CSV | JSON text, .json | CSV or TSV | Opening JSON records in spreadsheets and importing them into other apps |
| XML to CSV | XML text, .xml | CSV or TSV | Turning XML feeds and exports into spreadsheet rows |
| XML to JSON | XML text, .xml | JSON text, .json | Using XML feeds and exports in JSON-based apps and APIs |
| Excel to CSV | .xlsx, .xls, .ods | CSV or TSV | Importing spreadsheet data into apps, databases and online forms |
| DBF to Excel | DBF table | XLSX workbook | Opening dBASE or FoxPro records in Excel |
| EML to PDF | EML email | Keeping an email and its attachments as one PDF | |
| MHT to PDF | MHT web page | Saved web pages, Word web pages and Steps Recorder files | |
| Word counter | Text, .txt, .md | Word and character counts | Essays, forms, meta descriptions and posts with a length limit |
| CSV to SQL | CSV text, .csv, .tsv | SQL statements, .sql | Loading CSV rows into PostgreSQL, MySQL, SQLite or SQL Server |
Calculators
No file needed. Answers update as you type, and dice roll with one click.
Age calculator
Find an exact age in years, months and days from a date of birth.
Tip calculator
Work out the tip, split the bill and round up each share.
High school GPA calculator
Work out your weighted and unweighted GPA, with or without credits.
GPA calculator
Work out your semester and cumulative college GPA, and plan your final GPA.
Auto loan calculator
Work out your monthly car payment with tax, trade-in and fees, or check a refinance.
Overtime calculator
Work out overtime pay and your overtime rate per hour at time and a half, double time or any rate.
No tax on overtime calculator
Estimate your no tax on overtime deduction for 2025 to 2028 and the federal income tax it saves.
Dice roller
Roll a d6, a d20 or up to 50 dice, with a modifier and advantage.
Volume calculator
Find the volume of a cylinder, box, cone, sphere, pipe or tank, in gallons and liters too.
Area calculator
Find the area of a rectangle, triangle, circle or trapezoid, or the surface area of a solid.
Guides
Background on the formats and numbers behind the tools.
| Guide | Covers |
|---|---|
| What is JSON? | The format, .json files, opening and creating them, comments, and XML. |
| JSON square brackets | Arrays, nested lists, and common syntax errors. |
| How to convert JSON to CSV | Online conversion, files, Excel, Python, and common data shapes. |
| Cum laude, magna and summa cum laude | What each Latin honor means and the GPA colleges ask for. |
| How to find volume and area | The formula for every common shape, with worked examples. |
Open source, down to the code
See how the tools work, report a problem, or help make them better. The project is free to use and its code is available under the MIT License.