This section routes you to browser-based tools that convert image formats, shrink file sizes, and resize images without requiring a download, an account, or a payment card. Every tool listed here works in your current browser, accepts a file you upload, and returns a result you can save. None of them ask for a login, a credit card, or a subscription to perform the basic task described.
TinyPNG
TinyPNG compresses AVIF, WebP, PNG, and JPEG images. The free page lets you upload up to 20 images at once, each up to 5 MB, and also allows up to 3 free image conversions. No account is required. The retrieved page does not state a payment-card requirement or country availability. This is the first tool to try because it handles the most common formats and batch uploads without any sign-up.
Adobe Express Free Image Resizer / Compress
Adobe Express offers two separate free tools: one for resizing and one for compression. The resizer supports JPEG, JPG, PNG, and WebP; the compressor supports JPEG, JPG, and PNG. Files can be up to 40 MB. The page states "Free to use" and "No credit card required." The retrieved pages do not state whether an account is required or which countries it covers. Use this if you need to resize a large file or want a well-known brand behind the tool.
Squoosh
Squoosh is a free online image compressor and format converter built by Google that works directly in the browser. It supports JPEG, PNG, WebP, and AVIF. The retrieved page says no account or sign-up is required. Country availability is not documented. Squoosh is worth your time if you want to see a live preview of compression quality before you save, or if you need to convert to AVIF.
ImageCompressify
ImageCompressify converts between 40+ formats, compresses images, and can shrink to a target file size. The snippet says it is free, unlimited, with no signup, no credit card, and no watermarks. Country coverage is not documented. This is the best option if you need to convert between many formats or hit a specific file size limit.
MiniPx
MiniPx offers all compression, conversion, and resize tools free forever for single-image work, with no signup and no watermark. The free batch limit is 5 files. The snippet does not document country availability or whether a card is required; no card is mentioned for free use. Use MiniPx when you only need to process one image at a time and want a simple interface without any upsells.
ReSizer.AI
ReSizer.AI supports PNG, JPG, WebP, and AVIF, and lets you compress, resize, and convert images. The page says it is free, with no signup, and "completely free and always will be." Country coverage and card requirements are not documented. This is a smaller alternative to try if the others are blocked or slow, but it offers fewer format options than the top tools.
How to Choose Between Them
Start with TinyPNG for compressing PNG, JPEG, WebP, or AVIF files in batches. Switch to Adobe Express if your file is larger than 5 MB or you specifically need to resize. Use Squoosh when you want to compare quality side by side before saving. Pick ImageCompressify if you need to convert between many formats or hit a target file size. Choose MiniPx or ReSizer.AI only if the first four are unavailable or you prefer a simpler interface for single images. None of these tools require an account or a card, so you can test all of them in under a minute.
Frequently Asked Questions
Do any of these tools require me to create an account?
No. The retrieved pages for TinyPNG, Adobe Express, Squoosh, ImageCompressify, MiniPx, and ReSizer.AI do not state an account requirement for the free features described. You upload a file, get a result, and leave.
Can I use these tools on my phone or tablet?
Yes. All six tools work in a browser on any device, including phones and tablets. No app download is needed. The retrieved pages do not document device restrictions.
Will these tools add watermarks to my images?
No. The retrieved pages for ImageCompressify and MiniPx explicitly state no watermarks. The other tools (TinyPNG, Adobe Express, Squoosh, ReSizer.AI) do not mention watermarks in the retrieved snippets, and none of the pages indicate that watermarks are added to free output.
What is the maximum file size I can upload for free?
TinyPNG allows up to 5 MB per image. Adobe Express allows up to 40 MB. Squoosh, ImageCompressify, MiniPx, and ReSizer.AI do not state a file size limit in the retrieved pages, but very large files may take longer to process in your browser.
Are these tools available in my country?
The retrieved pages do not document country restrictions for any of these six tools. If a tool does not load or work, try another from the list, as availability may vary by region.
Do it here, free and with nothing to install: Heic.now, Img.now, Jpg.now.
The guides in this section
- How to Convert HEIC to JPG Free
- How to Convert PNG to JPG (and When You Should Not)
- How to Compress an Image Without Ruining It
- How to Convert an Image to SVG
Back up a level: Where to Convert Files Online Free: Images, Documents, Audio and Video.
