All Tool Categories

About Coding India Lab

I'm a web developer, and Coding India Lab started as a personal fix for a problem I kept hitting on client projects. I'd need to quickly convert a batch of PNGs, or minify a CSS file, or clean up a messy JSON response — small stuff, five minutes of work — but every "free" tool I found online had a catch. Either it capped you at 3 files, or it wanted an account, or the download button sat behind three ads. So I built a small converter for myself first. Then another. It grew from there.

There are 30+ tool categories on the site now, and honestly a few of them exist because someone emailed asking for a specific format I hadn't thought of. Most of the tools run entirely in your browser, so a PNG you drop into the converter never actually touches our server — it's processed locally and the download comes straight from your own machine.

A rough breakdown of what's here:

Images — PNG, JPG, WEBP, AVIF, BMP, GIF, SVG conversion, plus compression and resizing. This is the part I use the most myself, mostly for optimizing images before they go on a client's site.

Documents — DOCX to PDF, merging/splitting PDFs, Excel to JSON and back, CSV cleanup. Useful if you're a student submitting assignments or just someone who ends up with a folder full of mismatched file formats.

Code — minifiers and beautifiers for HTML/CSS/JS, MD5 generation, JSON validation. I built these for my own workflow before deployment, and they're still what I reach for first over any VS Code extension.

And then a grab-bag of smaller things — color pickers, QR generators, unit converters, loan calculators — that don't fit a bigger category but get used often enough that they earned a spot.

No logins anywhere on the site. If you need something that isn't here yet, the Contact Us page actually gets read — a good chunk of the newer tools exist because someone asked.

Picking the Right Tool

A few categories overlap enough that it's easy to click the wrong one, so here's how I'd think about it:

Just changing a file's format — PNG to WEBP, JPG to PNG, whatever — use the dedicated converter, not a general image editor. The converters batch-process and don't touch quality settings you didn't ask them to change. An editor is for when you actually need to crop, rotate, or draw on the image.

File's the right format already but too big? That's the Image Compressor, not a converter. Same file type comes out, just smaller — that's what you want before uploading something to a website where page speed matters.

Getting a file ready for production — HTML, CSS, JS — that's minifying. Trying to read code someone else already minified? You want the beautifier in the same section, most tool pages have both directions on one page.

If none of that narrows it down, the search box above the tool grid is faster than scrolling — type the file extension or what you're trying to do and it filters instantly.

Questions People Actually Ask

Do I need an account?

No. Open the tool, do the thing, download it. That's it.

Where do my files go?

For most tools, nowhere — the conversion happens in your browser and the file never leaves your device. A handful of tools that need heavier server-side processing (some of the PDF operations, for instance) do upload the file briefly, but it's deleted right after the job finishes. Nothing gets kept or reused.

Is there a usage limit?

No caps. One file or five hundred, doesn't matter.

A tool isn't loading or keeps failing — what now?

Usually it's either an old browser or a file that's just too large for browser-based processing to handle in one go. Update the browser first; if the file's in the hundreds of MB, try splitting it. Still stuck? Message us through Contact Us with the tool name and file type and I'll actually look into it.

Can I use converted files commercially?

Yes, no restrictions. Whatever comes out of the tool is yours.

More tools coming?

Pretty regularly, yeah — mostly driven by what people ask for. The "New" and "Trending" tags on the category grid above are the recent additions and the ones getting used a lot lately.