8 Free Browser Tools I Use Daily as a Freelance Developer (All in One Place, No Login, Works instantly)

Most "free tool" sites are either ad-riddled, broken on large files, or gate basic features behind a signup. I spent way too long cycling through them before landing on one that actually works for my day-to-day.
Everything below is from ToolsUp.net — a browser-based toolkit I keep open in a pinned tab. No account, no upload limits, nothing installed.
Here's what I actually reach for and when.
(toolsup.net)

1. Image Converter — WebP conversion that handles real files
   If you're building for the web in 2026 and still serving JPEGs everywhere, PageSpeed is telling you about it.
   The Image Converter on ToolsUp handles JPG, PNG, and WebP conversions in-browser. What I care about: it works on large files without timing out, supports bulk conversion when I have a full asset folder to process, and nothing gets uploaded to a server. Everything runs locally in the tab.
   I use this before almost every client handoff that involves images.

2. Screenshot Beautifier — For sharing work that actually looks good
   When I'm dropping a screenshot into a Slack message, a proposal, or a dev.to post, the raw screenshot looks sloppy next to anything professionally designed.
   The Screenshot Beautifier adds background gradients, padding, and device frames around your screenshot. Takes 10 seconds. The result looks like you opened Figma and spent 20 minutes on it.
   Devs share screenshots constantly — PRs, demos, bug reports, portfolio pieces. This is worth bookmarking just for that.

3. JSON Formatter — Validate and read API responses like a human
   You get a raw JSON blob back from an API, it's minified, and you need to figure out the structure fast. The JSON Formatter validates, formats, and beautifies it instantly in the browser.
   Yes, your IDE does this. But when I'm not in my IDE — reviewing something in a browser tab, debugging a webhook, checking a log — having this in a pinned tab is faster than context-switching.

4. GitHub Profile Generator — Build a README that doesn't embarrass you
   The GitHub Profile Generator gives you a visual editor for building your README.md. You pick sections, fill in your info, and get clean Markdown output to paste directly.
   If your GitHub profile is still blank or has a four-line placeholder you wrote two years ago, fix it. Recruiters and clients look at it.

5. Password Generator — Custom, strong, done
   I generate passwords for client staging environments, database users, API keys, and test accounts constantly. The Password Generator lets me control length and character sets and generates them client-side — nothing goes over the network.
   It's a small thing but using a proper generator instead of typing ClientName2024! is a habit worth having.

6. Lorem Ipsum Generator — Placeholder text without leaving the browser
   Designing a layout, building a component, writing a demo — you need filler text. The Lorem Ipsum Generator spits out as many paragraphs, sentences, or words as you need in one click.
   Not glamorous. You'll use it more than you think.

7. SQL Formatter — Readable queries, fast
   A complex raw SQL query with no indentation is genuinely hard to read. The SQL Formatter takes a dense query and formats it cleanly — useful when debugging slow queries, reviewing migrations, or just trying to understand what a piece of legacy code is actually doing.

8. Base64 Converter + URL Encoder — The ones you always Google
   You need to encode something for a data URI, decode a token, or fix a broken URL with special characters. Instead of Googling "base64 decode online" and landing on some sketchy ad-farm site, just use:

Base64 Converter — encode/decode in-browser
URL Encoder/Decoder — handle special characters without guessing

These are the tools you search for 3 times a week and never remember to bookmark. Consider this your reminder.

Why one site instead of eight tabs
The honest reason I stuck with ToolsUp: I got tired of maintaining a graveyard of single-purpose bookmarks. Half of them go down, get paywalled, or start nagging you to "create a free account to continue."
ToolsUp has enough coverage that I can handle most one-off tasks without hunting for a new tool. Image work, developer utilities, text tools, PDF stuff — it's all there, it runs fast, and nothing asks for my email.
If you haven't checked it in a while, it's grown a lot — there's also an AI Image Detector, Background Remover, Color Picker, and a bunch of social media formatters I use less but are solid.
🔗 toolsup.net

What tools are missing from your workflow that you wish existed as a browser-based no-login version? Drop it in the comments.