Show HN: ToolsOfWeb – 69 free online tools that run in the browser

Fast, private tools for PDFs, images, text, developers, calculators, and more — everything runs right in your browser.

✓100% free✓No signup✓Private — files stay on your device

The most-used tools on ToolsOfWeb. Pick one to start.

Combine multiple PDFs into a single file.

Compress images with quality + max-size controls.

Create QR codes free online: URL, text, WiFi, vCard, email, SMS. Custom colors, PNG/SVG download. 100% in your browser, no signup.

UUID Generator Online Free – v1, v4, v7 + Decoder

Generate UUIDs online free: v1, v4, v7, bulk up to 1000, format options, plus a UUID decoder that extracts embedded timestamps. 100% in your browser.

YAML to JSON Converter & JSON to YAML Online Free – Auto-Detect, No Upload

Convert YAML to JSON and JSON to YAML free online with live auto-detect: line-number errors, duplicate-key & tab warnings, multi-doc support. Zero ads, 100% in your browser.

WhatsApp Link Generator (wa.me + QR Code)

Create wa.me click-to-chat links with prefilled messages and QR codes. Free, no signup.

JWT Decoder Online Free – Decode & Verify Tokens

Decode JWT tokens online free: header, payload, expiry check, claims table. Your token never leaves your browser. No signup.

JSON to CSV Converter – Free Bidirectional, No Signup

Convert JSON to CSV and CSV to JSON free online: nested flattening, delimiter options, Excel-friendly output. 100% in your browser, no signup.

Unix Timestamp Converter Online Free – Epoch to Date

Convert Unix timestamps to dates and back free online: live clock, auto-detect seconds/ms/µs/ns, UTC + local time, relative time, batch convert. 100% in your browser.

Lorem Ipsum Generator Online Free – No Popups, No Trackers

Generate lorem ipsum free online: paragraphs, sentences, exact word counts, copy-as-HTML, themed packs (hipster, cupcake, pirate), share links. No popups, no trackers, 100% in your browser.

Rotate PDF Pages Online Free (No Upload) – 90°, 180°, 270°

Rotate all pages or selected pages in a PDF in your browser and download instantly.

Generate RFC 9562 UUID v7 (time-ordered) + v4 in bulk. Format, inspect timestamps, copy/download.

URL Encoder & Decoder Online Free – 4 Modes, No Upload

Encode and decode URLs free online: component, full URL, form and strict RFC 3986 modes, per-character breakdown, query-string parser. 100% in your browser, no signup.

Cron Expression Generator Online Free – Build, Explain & Preview

Build cron expressions visually, explain any cron in plain English, preview next 10 runs with timezone support. Quartz mode included. 100% in your browser.

Private by design — no upload to server

Your files are processed locally in your browser. PDFs and images are never sent to our servers — keeping your data on your own device is the strongest practical protection.

Private

Files are processed in your browser. Nothing is uploaded to a server, so your data stays on your device.

Fast

No server round-trips and no waiting in queues. Open a tool, do the job, download the result — done.

Free

Every tool is free forever: no signup, no watermarks, no usage limits, no premium upsells.

Quick answers about privacy, pricing, and how the tools work.

Yes. All tools are 100% free with no usage limits, no watermarks, and no hidden premium tiers. There are no accounts or subscriptions — open a tool and start using it.

No. Every tool works instantly with no signup, no email, and no login. Nothing is tracked back to a personal account because there isn’t one.

No. Tools process files locally in your browser on your own device. Your PDFs, images, and text are never sent to our servers, stored anywhere, or seen by anyone else.

Yes. Every tool is built to work on phones, tablets, and desktops. Just open the tool in your mobile browser and use it the same way.

Yes. The tools are free for personal and commercial use, including client projects. Outputs carry no watermark and no attribution requirement.

Once a tool page has loaded, the processing happens entirely on your device, so many tools keep working even with a slow or interrupted connection.

Browse the full collection with search, category filters, and tags — every tool runs in your browser.

ToolsOfWeb is a free online platform offering powerful browser-based tools for PDFs, images, text, developers, calculators, and more. Every tool runs directly in your browser — files are never uploaded to a server, so you get privacy and speed together.

Every tool on ToolsOfWeb is a small web application that runs entirely in your browser using JavaScript. When you drop a PDF into the merger or paste JSON into the formatter, the processing happens on your own device — the file or text is never sent to a server, stored anywhere, or seen by anyone else. This is different from most online tools, which upload your files to their servers for processing.

Because there is no server round-trip, the tools work fast and keep working even with a slow connection — once the page has loaded, many tools continue to function offline. There are no accounts, no usage quotas, and no watermarks: the tools are free for personal and commercial use, including client work. If a tool saves you time, the guides in the blog explain the concepts behind each task so you understand not just how, but why.