CSV ↔ JSON
Convert between CSV and JSON locally. Browse all 13 converters →
Images → PDF
Combine JPG/PNG into one PDF document.
Drop files here or browse
Up to any size. Multiple files OK.
ForgeMyFile vs typical online converters
A side-by-side. We're not picking on a specific competitor — these are the patterns common across the category.
| ForgeMyFile | Typical online converter | |
|---|---|---|
| Files uploaded to a server | Never | Yes, every conversion |
| Files stored after conversion | Impossible — nothing to store | Often retained 1–24 hours |
| Account / email required | No | Often, especially for larger files |
| File size limits | Your device's RAM | Typically 5–100 MB free tier |
| Works offline (after first load) | Yes | No |
| Source of conversion engine | Open-source libraries, view-source-able | Proprietary server-side, opaque |
| Speed | Limited by your CPU | Limited by upload speed + queue |
| Page itself shows ads | Yes, plainly labeled | Yes, often disguised |
Privacy, in plain language
We're going to be specific instead of saying things like "100% anonymous." That phrase is a lie on any page that loads ads — and we load ads. Here's what's actually true.
What runs entirely on your device
- Reading your file from disk into the browser
- The conversion itself — every one of the 13 tools
- Saving the converted file to your downloads folder
- The "preview" of converted text, JSON, or HTML
What does not run on your device
- Ad scripts (when enabled by the operator) and their analytics
- Page-view analytics, when enabled
- The first-load fetch of Google Fonts CSS (libraries themselves are self-hosted)
- After first load, the page works fully offline; ads do not
What we (the site operators) literally cannot see
- Your file names
- The contents of any file you convert
- Which converter you used, or how often
- Your conversion history
What ad networks may see
- Your IP address and approximate location
- Your user agent (browser + OS string)
- The page you visited (URL)
- Standard ad-serving cookies, where allowed by your browser
If you want to neutralize the ad networks too, run an ad blocker. The conversion tools themselves work either way — the privacy we offer for your files is independent of whether you block our ads.
How to use csv ↔ json
- Drop or paste a .csv or .jsonOr paste content directly.
- ConvertDirection is auto-detected.
- Download the converted fileAll local.
Frequently asked questions
What CSV dialect?
Whatever Papa Parse handles — RFC 4180, plus tolerant on common variations (BOM, CRLF, embedded newlines, quoted fields).
Does the conversion validate my data?
Loosely — JSON must be an array of objects to convert to CSV. Other shapes are kept as-is.
Is the data uploaded?
No, parsing runs in your browser.
What about huge files?
Hundreds of thousands of rows are fine on a laptop. Browser memory is the practical limit.
Are numbers and booleans typed in the JSON output?
Yes by default — "30" becomes 30 and "true" becomes true. Switch the option below to "keep as strings" if your data contains identifiers (zip codes, IDs starting with 0) you don't want coerced.