SizraImage resizer · Photo compressor · Android
Pick a photo, pick a limit — 50 KB, 100 KB, or anything you type — and get a file that fits. Always at or under, never over. Runs on your phone, with nothing uploaded.
Why this one is different
Most compressors give you a quality slider and a result you then have to check. Sizra works the other way round: you state the limit the form gave you, and it works backwards to a file at or under it. It also fixes the other half of the problem, which is format — an iPhone HEIC photo is rejected by many portals no matter how small it is, so Sizra converts to JPG in the same step. And because the files people need to shrink are usually passports, payslips and application photos, none of it is uploaded anywhere.
What the app stores, and what it does not, is set out in the privacy policy.
What Sizra does
Compress
Resize
Convert
Forms
Private
Pricing
The resizer is free with ads — no stamp on the output, and no cap on how many images you resize.
Sizra Pro is a subscription. The core resizer is free and stays free.
Take a look
From the blog
The photo works in Messages and fails on the job portal. Apple's own documentation explains why — and the word doing all the damage is 'might'.
Read articleQuestions
Pick the photo, tap the 100 KB preset, and save. Sizra works backwards from the limit rather than from a quality slider, and the result is always at or under it. There are presets from 20 KB to 1 MB, and you can type any target in KB or MB.
Compress it to the form's stated limit rather than guessing at a quality setting. If the form rejects the file even at the right size, the format is the other common cause — an iPhone HEIC file is refused by many portals regardless of how small it is.
Because iPhones save photos as HEIC by default and most upload forms only accept JPG or PNG. Renaming the file does not help — the data inside is still HEIC. Sizra converts it properly to JPG, and can hit a size limit in the same step.
With Sizra, yes, because nothing is uploaded. That is the reason it matters here: the documents people most often need to shrink are passports, bank statements and application photos, and most free compressors are websites that receive your file.
Yes, by default. Location, camera model and timestamps are removed from the file Sizra creates, so a photo you attach to a form carries no hidden information. You can turn that off if you need the metadata kept.
No. No stamp, no logo, and no cap on how many images you can resize. The core resizer is free and stays free.
Yes — by exact pixels, by percentage, or by longest edge, with the aspect ratio locked or unlocked. Photos are not stretched or upscaled unless you ask for it. Useful when a form specifies both a pixel size and a file size.
Completely. Every resize, conversion and compression happens on the phone, so it works in airplane mode and there is no account to sign in to.
HEIC and WebP to JPG so every website accepts the file, and PNG to JPG and back. When converting away from a format with transparency, it tells you the transparent areas will be filled rather than letting you find out afterwards.
The resizer is free with ads, with no watermark and no limit on how many images you resize. Sizra Pro is a subscription that removes ads and adds batch resizing and maximum-quality export.
Free on Google Play. Nothing leaves your phone.
Questions? hello@nainnielabs.com · Privacy policy