head to head · open source
excelize vs delta
excelize has 21,036 GitHub stars, 1,984 forks, 131 open issues and last shipped yesterday. delta has 9,065 stars, 2,206 forks, 955 open issues and last shipped yesterday. excelize leads on adoption by 132% (21,036 vs 9,065 stars). excelize is written in Go under BSD-3-Clause; delta is written in Scala under Apache-2.0. excelize has attracted 9% as many forks as stars, delta 24%. delta was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (analytics), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| excelize | delta | |
|---|---|---|
| GitHub stars | ★ 21K | ★ 9.1K |
| License | BSD-3-Clause | Apache-2.0 |
| Written in | Go | Scala |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 2.0K | ⑂ 2.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick excelize if
- You weight community size — 21K stars and counting
- You want the BSD-3-Clause license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick delta if
- You want the delta feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Scala
- You evaluated both and delta fits your workflow better
About excelize
Excelize Introduction Excelize is a library written in pure Go providing a set of functions that allow you to write to and read from XLAM / XLSM / XLSX / XLTM / XLTX files. Supports reading and writing spreadsheet documents generated by Microsoft Excel™ 2007 and later. Supports complex components by high compatibility, and provided streaming API for generating or reading data from a worksheet with huge amounts of data. This library needs Go version 1.25.0 or later. The full docs can be seen using go's built in documentation tool, or online at go.dev and docs reference. Basic Usage Installation If your…
read the full excelize overview →
About delta
Delta Lake is an open source storage framework that enables building a Lakehouse architecture with compute engines including Spark, PrestoDB, Flink, Trino, and Hive and APIs for Scala, Java, Rust, Ruby, and Python. See the Delta Lake Documentation for details. See the Quick Start Guide to get started with Scala, Java and Python. Note, this repo is one of many Delta Lake repositories in the delta.io organizations including delta, delta rs, delta sharing, kafka delta ingest, and website. The following are some of the more popular Delta Lake integrations, refer to delta.io/integrations for the complete list: Apache…
read the full delta overview →
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Frequently asked questions
Is excelize or delta more popular?
excelize has 21,036 GitHub stars and delta has 9,065. excelize has the larger community by that measure.
Are excelize and delta free?
Both are open source. excelize is licensed under BSD-3-Clause and delta under Apache-2.0. Neither carries a licence fee.
What is the difference between excelize and delta?
excelize is written in Go and delta in Scala. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, excelize or delta?
Choose excelize if you want the larger community (21,036 stars) or its BSD-3-Clause licence terms. Choose delta if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.