Smart PDF Lab
37 TOOLS · FREE · NO SIGN-UP

Every PDF & image tool.
Zero friction.

Compress, convert, sign, edit and merge — right in your browser. Files up to 200 MB, free OCR included, and nothing is ever stored. No account, no watermark, no daily cap.

Browse all 37 toolsno upload is kept · auto-deleted on completion

Drop any file here

PDF, Word, Excel, PowerPoint, or any image. We pick the right tool — you get the result in seconds.

⌘ PDF200 MB maxOCR ready
PDFDOCXXLSXPPTXJPGPNGWEBPHEICAVIFSVGBMPGIFMDHTMLPDF/AOCRPDFDOCXXLSXPPTXJPGPNGWEBPHEICAVIFSVGBMPGIFMDHTMLPDF/AOCR
Free, foreverNo watermarkFree OCR includedAuto-delete on completion
37
tools, all free
200MB
max file size
11
OCR languages
0
accounts required
Smart routing

Drop any file, we pick the right tool.

Smart PDF Lab detects your file type and routes you to the correct tool automatically. Upload a PDF, Word document, Excel sheet, PowerPoint deck, or any common image, and the right converter opens ready to run. Skip the tool list — Smart PDF Lab knows what your file needs.

Upload. Convert. Done.

The toolkit

One lab, every operation.

Pick a tool, drop your file, download the result. Everything runs free with no sign-up and no caps.

Why Smart PDF Lab

Free without
the compromise.

Generous limits, real privacy, and the features other tools paywall — included by default.

01 / FREE

No paywall, no watermark

Every feature ships on the free tier. No sign-up, no daily cap, no premium gate — including OCR on scanned PDFs, which most tools charge for.

$0
02 / LIMITS

200 MB, calibrated output

Files up to 200 MB across every tool. Three compression presets give predictable sizes — no trial-and-error guessing.

200 MB
03 / PRIVACY

Auto-deleted, never stored

Uploads run over HTTPS and are discarded the moment your conversion completes. Nothing is retained, shared, or analyzed.

0 kept
How it works

Three steps. Seconds.

The same simple flow across all 37 tools.

1

Pick your tool

Choose from 37 tools across compression, conversion, signing, editing and format change.

2

Drop your file

Drag and drop or browse — files up to 200 MB, every common PDF and image format.

3

Download the result

Processed in seconds and ready to download. The original auto-deletes immediately after.

Is Smart PDF Lab really free?
Yes. All 37 Smart PDF Lab tools are free with no sign-up, no watermark, no daily usage cap and no paywall on advanced features. OCR on PDF to Word conversion is included free, where most browser-based competitors charge for it.
What is the maximum file size I can upload?
Smart PDF Lab supports files up to 200MB across every tool, more generous than the free tiers offered by most browser-based PDF and image converters. The 200MB ceiling applies whether you compress, convert, merge or edit.
Are my files safe and private?
Yes. Files upload through HTTPS-encrypted connections, process on our servers, and auto-delete the moment your conversion completes. We do not retain copies, share files with third parties, or require account creation to use any tool.
Does PDF to Word conversion include OCR?
Yes. Smart PDF Lab includes OCR on every PDF to Word conversion at no cost, including scanned PDFs and image-based documents, across 11 languages. The output is a fully editable Word file with text recognition applied automatically.
How do I compress a PDF without losing quality?
Open the Compress PDF tool, drop your file, and choose lossless, balanced or maximum compression. The lossless and balanced presets reduce file size while keeping text sharp and images clear, so you get predictable output without trial and error.
Can I convert HEIC photos from my iPhone to JPG for free?
Yes. The HEIC to JPG tool converts iPhone HEIC and HEIF photos to universally compatible JPG in seconds, with no iCloud sync, paid software or sign-up required.
Do I need to install any software or create an account?
No. Smart PDF Lab runs entirely in your browser. There is nothing to install and no account to create. Just open a tool, upload your file and download the result.
What file formats does Smart PDF Lab support?
Smart PDF Lab works with PDF, Word (DOCX), Excel (XLSX), PowerPoint (PPTX), HTML, Markdown and PDF/A, plus image formats including JPG, PNG, WEBP, HEIC, AVIF, SVG, BMP and GIF. You can convert between most of these formats in either direction.
Can I use Smart PDF Lab on my phone?
Yes. Smart PDF Lab runs in any modern mobile browser on iPhone and Android with no app to install. Upload files directly from your phone’s storage or photo library, including iPhone HEIC photos, and download results straight to your device.
Will my formatting and fonts stay intact after conversion?
Yes. Smart PDF Lab preserves fonts, layout, tables, and images during conversion. Word, Excel, and PowerPoint files keep their original formatting, and embedded fonts transfer to the output wherever the font license permits.
Do you store or train on my uploaded files?
No. Smart PDF Lab does not store, share, analyze, or train any system on your files. Documents process on our servers only for the seconds your conversion takes, then auto-delete permanently. No copies are kept.
How many files can I convert per day?
There is no daily limit. Smart PDF Lab places no cap on the number of conversions, merges, or compressions you run. Use any tool as many times as you need, with no signup and no usage tracking.

Drop a file.
Get it back better.

Smart PDF Lab gives you 37 free PDF and image tools in one place, with no signup, no watermark, and no daily limit. Every file is processed on encrypted connections and auto-deletes the moment your conversion completes, so nothing stays on our servers and nothing stays with us.

Open a ToolSee All 37 Tools

From the Blog

Tutorials, tips, and product updates.

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How to Merge PDF Files Free Online

Need to combine multiple PDF files into one document? Learn how to merge PDF files free online using simple and secure tools. This guide walks you through the process step by step, helping you organize documents, save time, and create a single PDF without installing any software.