Is there a monthly limit?

No. Compression runs on your machine, so there is no per-image cost to us and no allowance to meter. Convert a hundred images or ten thousand — the only limit is how long your computer takes.

convert.now vs TinyPNG

TinyPNG does one thing extremely well. The question is whether you need the upload.

The short answer

TinyPNG uploads images to its servers, compresses them with a tuned pipeline, and returns the result. convert.now compresses in your browser using MozJPEG, libwebp and OxiPNG. TinyPNG's output is excellent and their API is mature; convert.now has no monthly limit and no upload.

Background

What TinyPNG is

TinyPNG is a focused image compression service, well known for the quality of its PNG and JPEG output, available through a web interface and a widely used API.

Comparison

convert.now vs TinyPNG, point by point

convert.now compared with TinyPNG.
Attribute	convert.now	TinyPNG
Where the conversion runs	In your browser, on your device	On TinyPNG's servers, after your file uploads
Does your file leave your device?	No — there is no upload step	Yes — the file is transmitted and stored while it is processed
Works offline	Yes, after the first page load	No
Account required	Never	Not for basic use; usually required past the free tier
Speed on a normal file	Immediate — no upload or download round trip	Upload time, queue time, then download time
Very large files	Bounded by your browser's memory, typically 250-500MB per tab	Bounded by their infrastructure, which is far larger
Format coverage	Images, PDF, spreadsheets, data, fonts, audio, archives	Broader — TinyPNG converts formats a browser has no codec for
Compression quality	MozJPEG, libwebp, OxiPNG — the same codec family most tooling uses	A well-tuned proprietary pipeline with a strong reputation
Monthly free allowance	No limit	Capped per month on the free tier
Batch size	Limited only by your machine	Capped per batch on the web interface
Format conversion as well as compression	Yes — PNG, JPG, WebP, AVIF, JPEG XL and more	Primarily compression, with some conversion
API	No	Yes, mature and widely integrated

Honest answer

When TinyPNG is the better choice

You are integrating compression into a build pipeline and want a maintained API.
You want their specific tuning, which has a deserved reputation for quality at small file sizes.

Honest answer

When convert.now is the better choice

You have more images than a free monthly allowance covers.
The images are not yours to upload — client work under NDA, unreleased product shots, anything private.
You want to convert format and compress in the same pass, for example PNG screenshots straight to WebP.

FAQ

TinyPNG vs convert.now: common questions

For most images, the difference is small. convert.now uses MozJPEG, libwebp and OxiPNG — the same codecs behind most respected compression tooling — and at quality 75-85 the output is competitive. TinyPNG's pipeline is proprietary and specifically tuned, and on some PNG images it does win. If a few percent of file size is critical, compare both on your actual images.

Try it

The tools this page is about

Image Compressor

Compress PNG, JPG, and WebP images without changing format. Privacy-preserving — runs in your browser, not on a server.

Image/image-compressor

Image Converter

Convert between PNG, JPG, WebP, AVIF, JPEG XL, TIFF, BMP, GIF, SVG, ICO, and HDR — instantly, in your browser. No upload. No waiting. Free for unlimited files.

Image/image-converter

Last updated 27 August 2026

TinyPNGis not affiliated with convert.now. Free-tier limits and pricing change often, so this page describes each service’s model rather than quoting figures that would go stale — check TinyPNG’s own site for current terms.