Toolerax is a collection of 169 free online tools across eight categories: PDF, image, text, converters, calculators, developer utilities, SEO and security.

Most tools run entirely in your browser. Merging PDFs, resizing and compressing images, cropping, removing backgrounds, formatting JSON, generating QR codes — the work is done by JavaScript and WebAssembly on your own machine, and the file is never uploaded. This is verifiable: open your browser's Network tab while a tool runs and you will see no upload request.

Formats most converters skip. Alongside the usual PDF and image work, Toolerax handles EPS, XPS, TIFF, PSD, HEIC and AVIF, the OpenDocument formats, legacy Microsoft formats including Publisher, Visio, WordPerfect and Works, and Apple iWork files — Pages, Keynote and Numbers. These need real desktop software, so they are processed server-side with LibreOffice, Ghostscript, ImageMagick, qpdf and Tesseract. Those files travel over HTTPS, are converted in an isolated workspace and are deleted the moment the result is returned. Each such tool says so on its own page.

Some specifics

• Background remover — runs an ONNX segmentation model in the browser through WebAssembly, or WebGPU where available
• OCR to searchable PDF — Tesseract, adds a genuine selectable text layer rather than an image
• PDF toolkit — merge, split, rotate, compress, watermark, page numbers, protect, unlock, repair, reorder
• Image tools — resize, crop, compress, convert, colour picker, add text
• Calculators — EMI, mortgage, BMI, TDEE, compound interest, GPA, due date

There is no account system, no watermarking, no daily quota, and no paid tier that gates features. Every tool has a written guide explaining the format and the trade-offs involved.