7 Browser Tools I Use Every Day as a Developer (Free, No Signup)

ezytoolz — Sat, 21 Mar 2026 08:05:22 +0000

There's a category of tools that doesn't get talked about much in developer circles — not because they're obscure, but because they're almost too simple to write about.
No APIs. No configuration. No stack decisions. Just open a tab, do the thing, close the tab.
I've been building and maintaining a web platform for about a year now, and these seven tools have become part of my actual daily workflow. Not aspirationally bookmarked — actually used. Here's what they are and why I reach for them.

Browser-Based PDF Compression
This comes up more than I expected when I started working on a project that involved user-uploaded documents.
The problem: users were uploading PDFs that were 15–20MB because they'd exported from design tools with maximum quality settings. The upload limit was 5MB. Asking users to "please compress your file first" is a support ticket waiting to happen.
For my own testing and document work, I use a browser-based PDF compressor. Drop the file in, select compression level, download. A 20MB design export typically comes down to under 2MB without visible quality loss at normal viewing sizes.
The part I care about as a developer: the good ones process entirely client-side using pdf-lib or similar — the file never leaves the browser. That matters when you're working with anything that has even minor sensitivity.
Image Format Conversion
WebP support is now solid across browsers, but the real world is messier. Clients still send PNGs that should be JPGs, or JPGs that need to be WebP for a specific use case, or HEIC files from iPhones that need converting before they can be used anywhere.
A browser-based image converter handles this without Photoshop, ImageMagick, or a shell command. For quick one-off conversions during development — converting a placeholder image, testing a different format — it's faster than spinning up a script.
The format options that matter in practice: JPG ↔ PNG ↔ WebP ↔ AVIF. Anything beyond that is usually better handled with a proper image processing pipeline anyway.
Image Compression
Related to conversion but different enough to be its own tool.
When building something with user-generated content, image weight is a constant concern. For testing how compressed images look at different quality levels — without writing code, installing software, or running a build — a browser compressor is useful.
The workflow: upload the original, check the output at 80%, 60%, 40% quality, compare file size vs. visual quality, decide on the compression target for the actual implementation.
It's a faster feedback loop than running sharp or imagemin locally when you're just trying to nail down the right quality threshold.
Meta Tag Checker
This one sounds basic until you're thirty minutes into trying to figure out why a URL isn't sharing correctly on Slack or LinkedIn.
Paste the URL, get back the title tag, meta description, OG tags, Twitter card data, and canonical — all in one view. No browser extension required, works on any machine, works on URLs you can't access locally.
Useful scenarios in actual development:

Checking a staging URL before launch
Verifying OG tags are rendering correctly after a CMS update
Confirming canonical tags are set on paginated content
Debugging why a preview image isn't showing up on social platforms

The one thing I'd note: make sure the tool you use actually fetches the URL server-side rather than just parsing whatever you paste. The former catches dynamically rendered meta tags; the latter doesn't.

JSON Formatter / Validator
Every developer has a JSON formatter. Mine lives in a browser tab.
The use case is simple: copy a raw JSON response from a network request, paste it into the formatter, read it. Or validate a JSON config file that's failing silently. Or compare the structure of two API responses.
Nothing novel here — this tool has existed forever — but it's worth mentioning because it's the one I reach for most consistently. Fast, no install, works on any machine I happen to be on.
QR Code Generator
This one surprised me by being more useful than I expected during development.
The scenario: you're building something that needs to be tested on a mobile device, and you want to share a staging URL without typing it out or using a URL shortener. Generate a QR code, scan it with your phone, done.
Other real uses that come up:

Testing QR code scanning features in an app
Generating a QR for a payment link during testing of a checkout flow
Creating QR codes for internal tools that need to be accessed from multiple devices

A browser-based generator is faster than any other option for one-off QR codes that don't need tracking or analytics.

Diff / Text Comparison Tool Paste two blocks of text, see the differences highlighted. This comes up constantly in ways that aren't covered by git diff:

Comparing two versions of a config file that came from different sources
Checking if two API responses are actually identical or subtly different
Comparing error messages across environments to find the one character that's different
Reviewing copy changes before updating a CMS

Most code editors have diff tools, but browser-based ones are useful when you're working across machines, comparing content from external sources, or just want something fast without opening an editor.

A Note on Privacy
For all of these: check whether the tool processes files client-side or server-side before using it with anything sensitive. The better browser tools are explicit about this. If a tool doesn't mention it, assume server-side.
For PDFs and images especially — if the file contains anything you'd care about, client-side processing is worth looking for specifically.

The Common Thread
None of these tools require an account, a download, or a decision about which plan to use. They're not trying to upsell you on anything. They just do one thing in a browser tab.
For tasks that come up daily but don't justify a dedicated tool installation or workflow integration, that's the right level of friction — which is to say, none at all.

I built 200+ free online tools — here's everything I learned in 8 months

ezytoolz — Sat, 14 Mar 2026 04:07:03 +0000

Eight months ago I started building EzyToolz — a free all-in-one tools platform. Today it has 200+ tools across PDF, image editing, financial calculators, SEO, and text utilities. No signup, no watermarks, no limits.
Here's everything I learned building it.
Why I built it
I was tired of opening 5 different sites to do basic tasks — compress an image, merge a PDF, calculate EMI. Every site had ads, popups, forced signups, or file size limits. I wanted one clean place for everything.
So I built it.
What the platform covers
PDF Tools — merge, split, compress, convert to Word/Excel/JPG, watermark, lock/unlock, rotate
Image Tools — compress, resize, crop, flip, blur, convert between JPG/PNG/WebP/HEIC/AVIF, passport photo maker, GIF maker, background tools
Financial Calculators — SIP, EMI, GST, Income Tax, FD, RD, NPS, HRA, Salary, Retirement Planning, Loan Eligibility — all India-specific with current 2024-25 tax slabs
SEO & Web Tools — meta tag generator, SERP preview, page speed test, domain age checker, robots.txt generator, source code viewer, favicon generator
Text Tools — word counter, case converter, binary to text, text to speech, grammar checker
Health Tools — BMI, calorie calculator, ideal weight, body fat, pregnancy calculator
All tools run in the browser. Nothing is stored on servers.
The technical decisions that saved me
Browser-based processing only. No backend for file handling. This kept infrastructure costs near zero and made privacy a genuine feature, not a marketing claim. Users' files never leave their device.
WordPress with plugins for tools. Controversial choice — many developers would reach for React or Next.js. But WordPress gave me SEO infrastructure, plugin ecosystem, and speed to ship. 200 tools in 8 months would have been much harder with a custom stack.
One tool per page, always. Early on I experimented with combining similar tools. It hurt usability and SEO both. Separate pages, separate focus.
The mistakes I made
Launched without backlinks. 8 months in, DR is still low. Tools were live, indexed, but ranking nowhere. I underestimated how much domain authority matters before content starts working. Lesson: start link building on day one, not month eight.
Targeted broad keywords too early. "Image compressor", "PDF merger" — these are DR 70+ territory. A new site has zero chance. Should have started with long-tail, zero-competition keywords from day one and built up.
Focused on building tools instead of marketing them. Classic builder mistake. I shipped 200 tools thinking quality would attract traffic organically. It doesn't work that way. Distribution matters as much as the product.
What is actually working now
Specific, India-focused financial calculators. Searches like "HRA exemption calculator 2024-25" or "post office MIS calculator 7.4%" have real search volume and almost no competition. These are starting to get impressions.
PDF tools with specific use cases. "Compress PDF to 100kb for UPSC application" — highly specific, low competition, real user need. These convert well because the intent is crystal clear.
Referral traffic from tool directories. AlternativeTo, Capterra, Toolify — these send consistent small traffic and build domain authority passively.
Current status

200+ tools live
Google AdSense approved and running
DR 4.1 (working on this actively)
Organic traffic: early stage, growing
Monthly active users: growing through direct and referral

What I'm focused on now
Building domain authority through legitimate link building. Submitting to directories. Writing content that answers specific questions rather than targeting broad keywords. Shifting from "build everything" to "market what exists."
The honest truth about building a tools site
Anyone can build tools. The hard part is getting Google to trust your site enough to show it to people searching for those tools. That trust takes time, backlinks, and content that genuinely answers specific questions better than existing results.
If I were starting over, I would spend the first 3 months on link building and content strategy before writing a single line of code.
Try it
If you need any of these tools — EzyToolz.com — everything is free, no signup needed.
Happy to answer questions about the technical stack, the WordPress setup, or the SEO approach.

DEV Community: ezytoolz

7 Browser Tools I Use Every Day as a Developer (Free, No Signup)

I built 200+ free online tools — here's everything I learned in 8 months