Compare video compressors
Several free tools can shrink a video to an exact file size — not just "smaller". Here's an honest side-by-side of the ones that do, based on what each tool's own site says (checked October 2026).
Side-by-side: exact-size video compressors
| Tool | Exact MB target | 100% in-browser (no upload) | Free | No watermark |
|---|---|---|---|---|
| VidSizer | ✅ Any MB, 1–2000 | ✅ | ✅ | ✅ |
| XConvert | ✅ "Specific file size" mode | ❌ Server-side | ✅ | ✅ |
| ClipZeal | ✅ 1–1000 MB | ✅ | ✅ | ✅ |
| ClipLime | ✅ Exact size mode | ✅ | ✅ | ✅ |
| Toolism | ✅ Any MB | ❌ Upload required | ✅ | ✅ |
| VideoCompress.ai | ✅ Target size | ❌ Cloud processing | ✅ Free tier | ✅ |
Based on each tool's own website, checked October 2026. Features change — verify before you rely on one.
The short version
XConvert (xconvert.com) is the most full-featured: exact MB via "Specific file size", plus codec (H.264/H.265/AV1) and resolution controls — but your file uploads to their servers.
ClipZeal (clipzeal.com) is the closest alternative to VidSizer: browser-local exact-size compression (1–1000 MB) with Discord/Gmail presets, nothing uploaded.
ClipLime (cliplime.com) is another browser-local option with an exact-size mode or a simple quality preset, free with no watermark.
Toolism (toolism.app) does exact-MB compression with a simple flow, but uploads your video to compress it.
VideoCompress.ai (videocompress.ai) takes a target size and processes in the cloud — fine for big files (free tier handles up to 1 GB), but not private by design.
Where VidSizer fits
VidSizer isn't the only exact-size compressor — the table above is honest about that. What it does differently: one-click presets for real platform limits (Discord 20/50/500 MB, Gmail 25 MB, WhatsApp 16 MB — no typing, no math), a 6% safety margin with verify-and-retry so the download is provably under your cap, and a dead-simple 3-step flow with nothing to learn.
If you need H.265 output or fine codec controls, XConvert is the better pick. If you want another browser-local option, ClipZeal and ClipLime are solid. If you just want a video to fit Discord on the first try, that's the job VidSizer was built for — try it above on the homepage.
FAQ
Which is the best free video compressor for Discord?
Any compressor with exact-size targeting and a Discord preset works. VidSizer has one-click presets for all three Discord tiers (20MB free, 50MB Nitro Basic, 500MB Nitro) and verifies the output lands under your cap before you download it.
Do online video compressors upload my video?
Some do and some don't. XConvert, Toolism and VideoCompress.ai process your file on their servers or in the cloud. VidSizer, ClipZeal and ClipLime run 100% in your browser — the video never leaves your device.
Can I compress a video to an exact file size?
Yes. VidSizer, XConvert ("Specific file size" mode), ClipZeal, ClipLime and Toolism all let you type an exact MB target. Most other compressors only offer Low / Medium / High quality sliders, which can't guarantee a number.
Is VidSizer really free?
Yes — no signup, no watermark, no limits on tries. Compression runs on your own device's CPU via FFmpeg.wasm, so there are no server costs to pass on to you.